Class: Item::HeatingElementPlan

Inherits:
Object
  • Object
show all
Defined in:
app/services/item/heating_element_plan.rb

Overview

Service object: heating element plan.

Constant Summary collapse

SPECIAL_LEGEND_DESCRIPTIONS =

Special legend descriptions.

{ 'ot_sensor' => 'OT Sensor *', 'slab_sensor' => 'SCE-SLAB-SS-KIT Sensor #' }.freeze

Instance Attribute Summary collapse

Delegated Instance Attributes collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(line_items, options = {}) ⇒ HeatingElementPlan

Initialize with an LineItem result set of heating elements or pass
options:
cable_spacing: 3.0 if you want to append the cable spacing in inche to the width
heating_system: name of the heating system



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# File 'app/services/item/heating_element_plan.rb', line 43

def initialize(line_items, options = {})
  @options = options
  self.all_line_items = line_items.without_children
  self.all_line_items_including_parents = line_items
  self.other_items = all_line_items.to_a - all_line_items.heating_elements.to_a # line_items.controls.to_a + line_items.accessories.to_a
  self.heating_system = @options[:heating_system] || 'TempZone Thin Cable' # use this as the default
  self.cable_spacing = @options[:cable_spacing]
  self.voltage = @options[:voltage] || 120 # use this as the default
  self.is_countertop = @options[:is_countertop] || false # use this as the default
  self.heating_elements_line_items = all_line_items.heating_elements.sort_for_plan

  self.installation_postal_code = @options[:installation_postal_code]
  self.electricity_rate = @options[:electricity_rate]
  self.installation_sqft = @options[:installation_sqft]
  self.locale = @options[:locale] || I18n.locale
  self.state_code = @options[:state_code]
  self.country_iso = @options[:country_iso]
  generate_heating_elements_lines
end

Instance Attribute Details

#all_line_items ⇒ Object

Returns the value of attribute all_line_items.



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# File 'app/services/item/heating_element_plan.rb', line 8

def all_line_items
  @all_line_items
end

#all_line_items_including_parents ⇒ Object

Returns the value of attribute all_line_items_including_parents.



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# File 'app/services/item/heating_element_plan.rb', line 8

def all_line_items_including_parents
  @all_line_items_including_parents
end

#cable_spacing ⇒ Object

Returns the value of attribute cable_spacing.



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# File 'app/services/item/heating_element_plan.rb', line 8

def cable_spacing
  @cable_spacing
end

#country_iso ⇒ Object

Returns the value of attribute country_iso.



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# File 'app/services/item/heating_element_plan.rb', line 8

def country_iso
  @country_iso
end

#electricity_rate ⇒ Object

Returns the value of attribute electricity_rate.



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# File 'app/services/item/heating_element_plan.rb', line 8

def electricity_rate
  @electricity_rate
end

#heating_elements_line_items ⇒ Object

Returns the value of attribute heating_elements_line_items.



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# File 'app/services/item/heating_element_plan.rb', line 8

def heating_elements_line_items
  @heating_elements_line_items
end

#heating_elements_lines ⇒ Object

Returns the value of attribute heating_elements_lines.



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# File 'app/services/item/heating_element_plan.rb', line 8

def heating_elements_lines
  @heating_elements_lines
end

#heating_system ⇒ Object

Returns the value of attribute heating_system.



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# File 'app/services/item/heating_element_plan.rb', line 8

def heating_system
  @heating_system
end

#installation_postal_code ⇒ Object

Returns the value of attribute installation_postal_code.



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# File 'app/services/item/heating_element_plan.rb', line 8

def installation_postal_code
  @installation_postal_code
end

#installation_sqft ⇒ Object

Returns the value of attribute installation_sqft.



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# File 'app/services/item/heating_element_plan.rb', line 8

def installation_sqft
  @installation_sqft
end

#is_countertop ⇒ Object

Returns the value of attribute is_countertop.



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# File 'app/services/item/heating_element_plan.rb', line 8

def is_countertop
  @is_countertop
end

#locale ⇒ Object

Returns the value of attribute locale.



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# File 'app/services/item/heating_element_plan.rb', line 8

def locale
  @locale
end

#other_items ⇒ Object

Returns the value of attribute other_items.



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# File 'app/services/item/heating_element_plan.rb', line 8

def other_items
  @other_items
end

#state_code ⇒ Object

Returns the value of attribute state_code.



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# File 'app/services/item/heating_element_plan.rb', line 8

def state_code
  @state_code
end

#voltage ⇒ Object

Returns the value of attribute voltage.



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# File 'app/services/item/heating_element_plan.rb', line 8

def voltage
  @voltage
end

Class Method Details

.get_room_best_location(rc) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 23

def self.get_room_best_location(rc)
  res = {}
  if rc.opportunity&.installation_postal_code.present?
    res[:installation_postal_code] = rc.opportunity.installation_postal_code
  elsif (shippping_address = rc.orders.first&.shipping_address || rc.quotes.first&.shipping_address).present?
    res[:state_code] = shippping_address.state_code
    res[:country_iso] = shippping_address.country_iso
    res[:installation_postal_code] = shippping_address.zip
  else
    res[:state_code] = rc.opportunity.customer.state_code
    res[:country_iso] = rc.opportunity.customer.country_iso
    res[:installation_postal_code] = rc.opportunity.customer.zip
  end
  res
end

.new_from_room_configuration(rc, _options = {}) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 11

def self.new_from_room_configuration(rc, _options = {})
  new(rc.line_items.goods,
      heating_system: rc.heating_system_type_name,
      cable_spacing: rc.installation_plan_cable_spacing || rc.line_items.primary_heating_element_spacing,
      voltage: rc.installation_plan_voltage_id,
      electricity_rate: rc.opportunity.electricity_rate,
      is_countertop: rc.is_countertop?,
      installation_sqft: rc.installation_sqft,
      locale: rc.opportunity.customer.locale,
      **get_room_best_location(rc))
end

Instance Method Details

#air_sensors ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 432

def air_sensors
  line_items_for_sku(%w[AIR-SS AIR-SS-2 SCPM-SS-120])
end

#alternative_volts_explanation ⇒ Object

make a hash of all alternative volts which we can display on the install plan



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# File 'app/services/item/heating_element_plan.rb', line 289

def alternative_volts_explanation
  volts = {}
  symbol = 1
  heating_elements_lines.select { |hel| hel.alternative_volts.present? }.each do |hel|
    unless volts.value?(hel.alternative_volts)
      volts[symbol] = hel.alternative_volts
      symbol += 1
    end
  end
  volts
end

#breaker_rules ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 581

def breaker_rules
  rules = []
  if ['TempZone Flex Roll', 'Environ Flex Roll', 'TempZone Easy Mat', 'Environ Easy Mat', 'TempZone Cable', 'TempZone Ruler Cable', 'TempZone Thin Cable',
      'TempZone Shower Mat', 'TempZone Custom Mat', 'Shower Mat Bench'].include?(heating_system)
    if relays.present?
      breakers = {}
      heating_elements_lines.each do |hel|
        bs = "#{breaker_size(hel.amps)} Amp #{hel.volts}V GFI Heater Circuit"
        new_qty = (breakers[bs] || 0) + 1
        breakers[bs] = new_qty
      end
      breakers.each_pair { |key, value| rules << "#{value} x #{key}" }
      rules << "#{controls.sum(:quantity)} x 15 Amp 120V Non-GFI Control Circuit" unless controls.empty?
    elsif (num_power_modules = power_modules.sum(:quantity)).positive?
      # How many switching thermostats do we have as well?
      num_tstats = current_switching_thermostats.sum(&:quantity)
      total_switching_relays = num_tstats + num_power_modules
      if total_switching_relays == heating_elements_lines.length
        # SPECIAL CASE: If total_switching_relays matches number of heating elements, then assume 1 per switching relay and show each unit's breaker based on the heating element's amps.
        breakers = {}
        heating_elements_lines.each do |hel|
          bs = "#{breaker_size(hel.amps)} Amp #{hel.volts}V Non-GFI Heater Circuit"
          new_qty = (breakers[bs] || 0) + 1
          breakers[bs] = new_qty
        end
        breakers.each_pair do |key, value|
          rules << "#{value} x #{key}"
        end
      else
        rules << "#{total_switching_relays} x 20 Amp #{heating_system_voltage}V Non-GFI Circuit"
      end
    elsif integration_kits.sum(:quantity) == 1
      # if there is just 1 integration kit then show breaker info based on total heating load
      rules << "1 x #{breaker_size(total_amps, 30)} Amp #{heating_system_voltage}V GFI Circuit"
    elsif integration_kits.sum(:quantity) > 1
      rules << "#{integration_kits.sum(:quantity)} x 30 Amp #{integration_kits.first.item.voltage}V GFI Circuit"
    elsif current_switching_thermostats.present?
      if (num_tstats = current_switching_thermostats.sum(&:quantity)) > 1
        if num_tstats == heating_elements_lines.length
          # SPECIAL CASE: If multiple thermostats matches number of heating elements, then assume 1 per tstat and show each unit's breaker based on the heating element's amps.
          breakers = {}
          heating_elements_lines.each do |hel|
            bs = "#{breaker_size(hel.amps)} Amp #{hel.volts}V Non-GFI Heater Circuit"
            new_qty = (breakers[bs] || 0) + 1
            breakers[bs] = new_qty
          end
          breakers.each_pair do |key, value|
            rules << "#{value} x #{key}"
          end
        else
          # If multiple thermostats, then show qty of breakers = qty of thermostats, and show each unit need 20 Amps breaker, since we are assuming maximum load.
          rules << "#{num_tstats} x 20 Amp #{heating_system_voltage}V Non-GFI Circuit"
        end
      else
        # else if single thermostat then show 1 breaker and use regular breaker size rule for total heating elements, upto max of 20 Amps.
        rules << "1 x #{breaker_size(total_amps, 20)} Amp #{heating_system_voltage}V Non-GFI Circuit"
      end
    else # no controls, so use generic sentence
      rules << 'The warming system must be electrically grounded and protected by a GFCI'
    end
  elsif ['Slab Heat Mat', 'Slab Heat Cable'].include?(heating_system)
    if relays.present?
      breakers = {}
      heating_elements_lines.each do |hel|
        bs = "#{breaker_size(hel.amps)} Amp #{hel.volts}V GFI Heater Circuit"
        new_qty = (breakers[bs] || 0) + 1
        breakers[bs] = new_qty
      end
      breakers.each_pair { |key, value| rules << "#{value} x #{key}" }
      rules << "#{controls.sum(:quantity)} x 15 Amp 120V Non-GFI Control Circuit" unless controls.empty?
    elsif (num_power_modules = power_modules.sum(:quantity)).positive? # if a power modulator is present
      # How many switching thermostats do we have as well?
      num_tstats = current_switching_thermostats.sum(&:quantity)
      total_switching_relays = num_tstats + num_power_modules
      rules << "#{total_switching_relays} x 20 Amp #{heating_system_voltage}V Non-GFI Circuit"
    elsif controls.empty? # no relays, no controls, so use generic sentence
      rules << 'The warming system must be electrically grounded and protected by a GFCI'
    else # no relays, but there are controls
      rules << "#{controls.sum(:quantity)} x #{breaker_size(total_amps)} Amp #{heating_system_voltage}V Non-GFI Circuit" unless controls.empty?
    end
  elsif ['Snow Melt Mat', 'Snow Melt PowerMat', 'Snow Melt OmniMat', 'Snow Melt EcoMat', 'Snow Melt Cable'].include?(heating_system)
    if relays.present?
      breakers = {}
      heating_elements_lines.each do |hel|
        bs = "#{breaker_size(hel.amps)} Amp #{hel.volts}V GFEP Heater Circuit"
        breakers[bs] ||= 0
        breakers[bs] += 1
      end
      breakers.each_pair { |key, value| rules << "#{value} x #{key}" }
      rules << "#{controls.sum(:quantity)} x 15 Amp 120V Non-GFI Control Circuit" unless controls.empty?
    elsif has_item?(ItemConstants::POWER_MODULATORS) # if a power modulator is present
      power_modulator_count = line_items_for_sku(ItemConstants::POWER_MODULATORS).sum(:quantity)
      rules << "#{power_modulator_count} x 120V Non-GFI Control Circuit"
      rules << "1 x #{heating_system_voltage}V Non-GFI Circuit per contactor"
    elsif controls.empty? # no relays, no controls, so qty of breakers = qty of heating elements
      breakers = {}
      heating_elements_lines.each do |hel|
        bs = "#{breaker_size(hel.amps)} Amp #{hel.volts}V GFEP Heater Circuit"
        new_qty = (breakers[bs] || 0) + 1
        breakers[bs] = new_qty
      end
      breakers.each_pair { |key, value| rules << "#{value} x #{key}" }
    else # no relays, but there are controls
      rules << "#{controls.sum(:quantity)} x #{breaker_size(total_amps)} Amp #{heating_system_voltage}V GFEP Circuit" unless controls.empty?
    end
  elsif /roof|pipe/i.match?(heating_system)
    number_of_power_kits = line_items_for_sku(%w[SR-PWR-KIT PT-PWR-KIT-H]).sum(:quantity)
    if has_item?('SR-PLUG-KIT') # if a plug-in kit is present
      number_of_kits = line_items_for_sku('SR-PLUG-KIT').sum(:quantity)
      rules << "#{number_of_kits} x 15 AMP 120V Non-GFI Circuit (1 outlet required per plug-in kit)"
    elsif relays.present?
      rules << "#{controls.sum(:quantity)} x 15 Amp 120V Non-GFI Control Circuit" unless controls.empty?
      if [120, 240].include?(heating_system_voltage)
        rules << if number_of_power_kits.zero?
                   "#{heating_system_voltage}V"
                 else
                   "#{number_of_power_kits} x #{heating_system_voltage}V GFEP Heater Circuit"
                 end
        rules << "Refer to electrical plan's circuit breaker size vs cable length table"
      end
    elsif heating_system.match(/roof/i) && has_item?(ItemConstants::POWER_MODULATORS) # if r&g and a power modulator is present
      power_modulator_count = line_items_for_sku(ItemConstants::POWER_MODULATORS).sum(:quantity)
      rules << "#{power_modulator_count} x 120V Non-GFI Control Circuit"
      rules << "1 x #{heating_system_voltage}V Non-GFI Circuit per contactor"
    elsif controls.empty? # no relays, no controls, so qty of breakers = qty of heating elements
      rules << if number_of_power_kits.zero?
                 "#{heating_system_voltage}V"
               else
                 "#{number_of_power_kits} x #{heating_system_voltage}V GFEP Heater Circuit"
               end
      rules << "Refer to electrical plan's circuit breaker size vs cable length table"
    elsif /pipe/i.match?(heating_system) # no relays, but there are controls
      rules << "Refer to electrical plan's circuit breaker size vs cable length table"
    else
      unless controls.empty?
        rules << "#{controls.sum(:quantity)} x #{roof_and_gutter_breaker_size(heating_system_voltage,
                                                                              total_length)} Amp #{heating_system_voltage}V GFEP Circuit"
      end
    end
  else
    []
  end
  rules
end

#breaker_size(amps = total_amps, max_amps = 50) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 467

def breaker_size(amps = total_amps, max_amps = 50)
  case amps
  when 0..12 then 15
  when 12.01..16 then [20, max_amps].min
  when 16.01..24 then [30, max_amps].min
  when 24.01..32 then [40, max_amps].min
  when 32.01..40 then [50, max_amps].min
  end
end

#build_from_line_item(line_item, qty = nil, heating_element_number = nil) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 252

def build_from_line_item(line_item, qty = nil, heating_element_number = nil)
  item = line_item.item
  multiplier = (qty || line_item.quantity || 1).to_f
  # Self healing in case specs are missing
  if item.voltage.blank? || item.amps.blank? || item.watts.blank? || item.ohms.blank?
    item.update_rendered_product_specifications(tokens: %w[voltage amps watts ohms])
    item.reload
  end
  begin
    element_pole_assignments = if line_item.room_configuration && heating_element_number
                                 line_item.room_configuration.element_pole_assignments.ordered.where(heating_element_number: heating_element_number,
                               heating_element_item_id: line_item.item_id)
                               else
                                 ElementPoleAssignment.none
                               end
    Item::HeatingElementLine.new(
      sku: item.sku,
      width: cable_spacing || item.width,
      length: (item.length.nil? ? nil : item.length * multiplier),
      volts: item.voltage,
      alternative_volts: item.alternative_volts.presence&.join(', '),
      amps: (item.amps.to_f * multiplier).round(2),
      watts: (item.watts.to_f * multiplier),
      btu_per_hr: (item.watts.to_f * multiplier) * RoomConfiguration::BTU_PER_HOUR_PER_WATT,
      watts_per_linear_feet: item.watts_per_linear_feet,
      cold_lead_length: item.cold_lead_length,
      ohms: item.ohms&.round(2),
      poles: element_pole_assignments.map(&:pole_number).join(', '),
      relay: element_pole_assignments.first&.relay_identifier,
      heating_element_number: heating_element_number
    )
  rescue StandardError => e
    ErrorReporting.error(e, { line_item_id: line_item.id, item_id: item.id, item_sku: item.sku })
  end
end

#cold_leads ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 440

def cold_leads
  line_items_for_sku('COLDLEAD')
end

#cold_leads_length ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 453

def cold_leads_length
  cold_leads.sum(:quantity)
end

#control_voltage ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 404

def control_voltage
  relays.present? ? 120 : heating_system_voltage
end

#controls ⇒ Object

Alias for All_line_items#controls

Returns:

  • (Object) —

    All_line_items#controls

See Also:



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# File 'app/services/item/heating_element_plan.rb', line 414

delegate :controls, to: :all_line_items

#current_switching_thermostats ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 553

def current_switching_thermostats
  all_line_items.smartstats + all_line_items.easystats + all_line_items.oj_tstats
end

#display_cutting_info? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 513

def display_cutting_info?
  ['TempZone Flex Roll', 'Environ Flex Roll'].include?(heating_system)
end

#electrical_consumption ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 742

def electrical_consumption
  return nil if heating_elements_line_items.any? { |he| he.item.is_self_regulating_cable? }
  return nil unless total_watts&.positive?

  avg_rate = ElectricityRate.get_average_for_locale(locale) # I don't see a way to determine the locale to use if no zip code
  disclaimer = "This calculation is based on the national average of $#{avg_rate} per kWh, but consumption may vary based on individual conditions."
  if electricity_rate.present?
    avg_rate = electricity_rate.round(4)
    disclaimer = "This calculation is based on the rate of $#{avg_rate} per kWh, but consumption may vary based on individual conditions."
  elsif installation_postal_code.present?
    result = ElectricityRate.get_from_postal_code(installation_postal_code)
    if result[:status] == :ok && result[:average_rate].present?
      avg_rate = result[:average_rate].round(4)
      disclaimer = "This calculation is based on the average rate of $#{avg_rate} per kWh for zip/postal code #{installation_postal_code}, but consumption may vary based on individual conditions."
    end
  elsif (state_rate = ElectricityRate.get_average_rate_for_country_iso_state_code(country_iso, state_code))
    avg_rate = state_rate
    disclaimer = "This calculation is based on the average rate of $#{avg_rate} per kWh for state/province #{state_code}, but consumption may vary based on individual conditions."
  end

  # 2.3 = thermal inertia
  # 1 = number of hours operation
  if heating_system.index(/roof|snow|pipe/i)
    # For snow melt we typically don't account for thermal inertia, because these systems can be running non-stop (Anatoliy 3/16/17)
    coefficient = 1
  else
    coefficient = 0.4348
    disclaimer << ' Operating cost is estimated based on the average thermal inertia due to the thermostat cycling the power during the heating period.'
  end
  watts_per_sqft(true)

  consumption_rate = ((avg_rate * coefficient * total_watts) / 1000).round(2)
  {
    rate: consumption_rate,
    coefficient:,
    avg_rate:,
    total_watts:,
    disclaimer:
  }
end

#electrical_plan_controls ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 444

def electrical_plan_controls
  # here we really want parents_only i.e. no kit compnents, I believe, per Anatoliy's request to not display the Zone braker twice
  all_line_items_including_parents.electrical_plan_controls.parents_only + line_items_for_sku('SR-PLUG-KIT')
end

#electrical_rough_in_kits ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 557

def electrical_rough_in_kits
  all_line_items_including_parents.joins(:item).where(items: { sku: 'FHE-ROUGH-IN-KIT-03' })
end

#extra_instructions ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 726

def extra_instructions
  instructions = []
  # Cold lead
  if cold_leads_length.positive?
    instructions << 'COLD LEAD:'
    instructions << "#{cold_leads_length}' of additional cold lead"
  end

  # Aerial Sensor
  if air_sensors.present?
    instructions << 'AERIAL SENSOR:'
    instructions << 'Provided, but not shown on drawing. Location per installer\'s discretion. WarmlyYours recommends it to be in an area most indicative of snow conditions.'
  end
  instructions
end

#first_heating_element_voltage ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 545

def first_heating_element_voltage
  heating_elements_lines.first&.volts
end

#floor_load ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 391

def floor_load
  # needs to be 1000.0 so both values are Float, else can lead to it being 0
  (total_watts / 1000.0).round(1)
end

#flooring_label ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 577

def flooring_label
  is_outdoor? || is_countertop? ? 'Surface Type' : 'Flooring'
end

#generate_heating_elements_lines ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 182

def generate_heating_elements_lines
  self.heating_elements_lines = []
  heating_element_number = 0
  heating_elements_line_items.each do |he_line_item|
    if he_line_item.item.spec_value(:plan_grouping) == 'group_qty_to_length'
      # Group items by sku on plan
      # Build heating element line will use implicit line item quantity multiplier
      heating_elements_lines << build_from_line_item(he_line_item)
    else
      # one line per quantity will split the line items rendering one in the table for each qty
      he_line_item.quantity.times do
        heating_element_number += 1
        # Force quantity multiplier to one since we're splitting the rendering
        heating_elements_lines << build_from_line_item(he_line_item, 1, heating_element_number)
      end
    end
  end
end

#has_item?(sku) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 420

def has_item?(sku)
  line_items_for_sku(sku).present?
end

#heating_elements_table(with_cold_lead: false, with_ohms: false, with_pole_assignment: false) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 333

def heating_elements_table(with_cold_lead: false, with_ohms: false, with_pole_assignment: false)
  table = []
  heating_elements_lines.each_with_index do |hel, i|
    row = {}
    row[:row_number] = i + 1
    heating_elements_table_column_headers(with_cold_lead: with_cold_lead, with_ohms: with_ohms, with_row_number: false, with_pole_assignment: with_pole_assignment).each_key do |attrib|
      row[attrib] = if attrib == :volts
                      hel.volts_with_alternative_volts(alternative_volts_explanation)
                    else
                      hel.send(attrib)
                    end
    end
    table << row
  end
  table
end

#heating_elements_table_column_headers(with_cold_lead: false, with_ohms: false, with_row_number: true, with_pole_assignment: false) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'app/services/item/heating_element_plan.rb', line 305

def heating_elements_table_column_headers(with_cold_lead: false, with_ohms: false, with_row_number: true, with_pole_assignment: false) # rubocop:disable Lint/UnusedMethodArgument
  _ = with_cold_lead
  _ = with_ohms
  headers = {}
  headers[:row_number] = '#' if with_row_number
  unless /TempZone Custom Mat/i.match?(heating_system)
    headers[:imperial_width] = (cable_spacing.present? ? 'Spacing' : 'Width') unless /roof|pipe/i.match?(heating_system)
    headers[:imperial_length] = 'Length'
  end
  headers[:imperial_cold_lead_length] = 'Lead' unless /roof|pipe/i.match?(heating_system)
  headers[:volts] = 'Volts'
  if /roof|pipe/i.match?(heating_system)
    headers[:watts_per_linear_feet] = 'Watts Per Ft'
  else
    headers[:watts] = 'Watts'
    headers[:btu_per_hr] = 'BTU/h'
    headers[:amps] = 'Amps'
    headers[:ohms] = 'Ohms'
  end

  if with_pole_assignment
    headers[:poles] = 'Poles'
    headers[:relay] = 'Relay'
  end

  headers
end

#heating_elements_table_footers ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 350

def heating_elements_table_footers
  return {} if heating_elements_lines.length <= 1 # don't add a footer if there's only 1 row

  footers = {}
  footers[:imperial_length] = UnitConversions.inches_to_feetinches(total_length) if heating_system.index(/roof|pipe/i)
  footers[:watts] = total_watts unless heating_system.index(/roof|pipe/i)
  footers[:btu_per_hr] = total_btu_per_hr unless heating_system.index(/roof|pipe/i)
  footers[:amps] = total_amps unless heating_system.index(/roof|pipe/i)
  footers
end

#heating_system_name ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 521

def heating_system_name
  case heating_system
  when 'TempZone Thin Cable'
    'TempZone 3W Cable'
  when 'TempZone Cable'
    'TempZone 3.7W Cable'
  when 'TempZone Ruler Cable'
    'TempZone 3.7W Ruler Cable'
  else
    heating_system
  end
end

#heating_system_voltage ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 549

def heating_system_voltage
  voltage || first_heating_element_voltage
end

#heating_system_with_voltage ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 534

def heating_system_with_voltage
  addendum_for_mixed_systems = ''
  addendum_for_mixed_systems = ' & Cable' if (heating_system_name.to_s.downcase.index('mat') || heating_system_name.to_s.downcase.index('roll')) && heating_elements_line_items.any? do |li|
    li.item.is_cable_system?
  end
  addendum_for_mixed_systems = ' & Mat/Roll' if heating_system_name.to_s.downcase.index('cable') && !heating_system_name.to_s.downcase.index('roof') && !heating_system_name.to_s.downcase.index('pipe') && heating_elements_line_items.any? do |li|
                                                  !li.item.is_cable_system?
                                                end
  "#{heating_system_name}#{addendum_for_mixed_systems} #{voltage}V"
end

#hide_flip_turn? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 517

def hide_flip_turn?
  [nil, 'Environ Flex Roll'].include?(heating_system)
end

#highlighted_columns ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 301

def highlighted_columns
  %i[voltage watts btu_per_hr amps ohms]
end

#instructions(include_electrical_plan_rules = false, include_installation_plan_rules = false) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 783

def instructions(include_electrical_plan_rules = false, include_installation_plan_rules = false)
  inst = []
  inst << 'All power leads travel back to thermostat or junction box.' if ['TempZone Flex Roll', 'Environ Flex Roll', 'Environ Easy Mat',
                                                                           'TempZone Easy Mat', 'TempZone Cable', 'TempZone Ruler Cable', 'TempZone Thin Cable', 'Slab Heat Cable', 'Slab Heat Mat', 'TempZone Shower Mat', 'Shower Mat Bench'].include?(heating_system)
  inst << 'All power leads travel back to the controller, relay panel or junction box.' if heating_system.index(/roof|snow|pipe/i)
  if include_installation_plan_rules == true
    inst << 'Always start warming cable down unless noted otherwise.' if ['TempZone Flex Roll', 'Environ Flex Roll'].include?(heating_system)
    inst << 'Cut only mesh, never cut warming cable.' if ['TempZone Flex Roll', 'Slab Heat Mat', 'Snow Melt Mat', 'Snow Melt PowerMat', 'Snow Melt OmniMat', 'Snow Melt EcoMat'].include?(heating_system)
    inst << 'Cut only silver material, never cut warming cable.' if ['Environ Flex Roll'].include?(heating_system)
    inst << 'Never cut heating rolls.' if ['Environ Easy Mat', 'TempZone Easy Mat', 'TempZone Shower Mat',
                                           'Shower Mat Bench'].include?(heating_system)
    inst << 'Never cut heating cable.' if ['TempZone Cable', 'TempZone Ruler Cable', 'TempZone Thin Cable', 'Snow Melt Cable', 'Snow Melt Cable'].include?(heating_system)
    inst << 'Never wire multiple rolls or cables together.' # all systems
    inst << 'Verify sum of panels equals roll length for each roll.' if ['TempZone Flex Roll', 'Environ Flex Roll', 'Slab Heat Mat',
                                                                         'Snow Melt Mat', 'Snow Melt PowerMat', 'Snow Melt OmniMat', 'Snow Melt EcoMat'].include?(heating_system)
  end
  inst << 'Keep the bus wires separated. The bus wires will short if they touch each other.' if heating_system.index(/roof|pipe/i)
  inst << 'Keep components and ends of heating cable dry before installation.' if heating_system.index(/roof|pipe/i)
  inst << 'The heating cable should not be embedded in insulation or roofing material.' if heating_system.index(/roof/i)
  inst << 'Do not twist cable during installation.' if heating_system.index(/roof|pipe/i)
  if include_electrical_plan_rules == true
    inst << 'Always test rolls/cables out of the box with an Ohm meter and Mega-Ohm meter (optional). See manual for other required tests.' # all systems
    unless heating_system.index(/roof|pipe|snow/i)
      inst << 'Integration Kit: Can be installed on the side or inside of the separate electrical box or a distribution panel, according to NEC and local code requirements.' if integration_kits.present?
      if has_item?(%w[UWG4-4999 UWG4-4999-WY UWG5-4999-WY UWG4-4999-B UDG4-4999 UDG4-4999-WY UDG4-4999-B UDG-4999 UTN4-4999 USG-4000 USG5-4000]) # if an OJ tstat is present
        tstat_box_size = conduit_box_size = '3"x2"x3-1/2" single gang'
      else
        tstat_box_size = '4"x4" square'
        conduit_box_size = '4" double gang'
      end
      if thermostats.any? && integration_kits.blank?
        inst << "Thermostat: Install a #{tstat_box_size}, 2-1/8\" deep electrical box according to NEC and local code requirements. Electrical boxes should be located on interior walls, commonly 60\" from the floor."
      end
      inst << "Power lead Conduit: The shielded power lead can be installed with or without electrical conduit depending on local code requirements. In either case, remove one of the knock-outs in the #{conduit_box_size} box to route the lead. If electrical conduit is not required by code, install a wire collar to secure the leads where they enter the box."
      if sensors.present?
        inst << 'Floor Sensor: A floor sensor comes with our floor heating systems. It can be installed in a conduit separate from the electrical power lead. If local code requires the low voltage sensor wire be housed in conduit, it must use a separate conduit from the power leads (high voltage).'
      end
      if power_modules.present?
        inst << 'Power module(s) must be wired to the main Thermostat using low-voltage field wiring cable, recommended min. 20 AWG. Connect wiring from A&B terminals on the front of the thermostat base to C&D on the front of the power module base. (Keep polarity: A to C and B to D). Maximum distance between thermostat and power modules is 80 ft (25 m.) See the diagrams in the power module box.'
      end
    end
  end
  inst
end

#integration_kits ⇒ Object

Alias for All_line_items#integration_kits

Returns:

  • (Object) —

    All_line_items#integration_kits

See Also:



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# File 'app/services/item/heating_element_plan.rb', line 410

delegate :integration_kits, to: :all_line_items

#is_countertop? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 565

def is_countertop?
  is_countertop == true
end

#is_environ? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 230

def is_environ?
  ['Environ Flex Roll', 'Environ Easy Mat'].include?(heating_system)
end

#is_indoor_floor_heating_system? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 225

def is_indoor_floor_heating_system?
  ['TempZone Flex Roll', 'TempZone Easy Mat', 'TempZone Shower Mat', 'Shower Mat Bench', 'TempZone Cable', 'TempZone Ruler Cable', 'TempZone Thin Cable', 'Environ Flex Roll',
   'Environ Easy Mat'].include?(heating_system)
end

#is_outdoor? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 561

def is_outdoor?
  heating_system.index(/roof|snow|pipe/i) != nil
end

#is_pipe_freeze? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 569

def is_pipe_freeze?
  heating_system.index(/pipe/i) != nil
end

#legend ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 201

def legend
  symbols = case heating_system
            when /TempZone Flex Roll|Environ Flex Roll|TempZone Shower Mat|Shower Mat Bench/i
              %w[start end roll_number]
            when /Snow Melt Mat|TempZone Easy Mat|Slab Heat Mat/i
              %w[start end mat_number]
            when /TempZone Cable|TempZone Ruler Cable|TempZone Thin Cable|Snow Melt Cable|Slab Heat Cable/i
              %w[start end cable_number halfway_mark]
            when /roof|pipe/i
              %w[start end cable_number]
            when 'Environ Easy Mat'
              ['roll_number']
            else
              []
            end
  symbols << 'thermostat' if all_line_items.thermostats.present?
  symbols << 'relay' if relays.present? && is_indoor_floor_heating_system?
  symbols << 'power_module' if all_line_items.power_modules.present?
  symbols << 'integration_kit' if integration_kits.present?
  symbols << 'ot_sensor' if ot_sensors.present?
  symbols << 'slab_sensor' if has_item?('SLAB-SS') || has_item?('SCE-SLAB-SS-56')
  symbols
end

#line_items_for_sku(sku) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 424

def line_items_for_sku(sku)
  all_line_items.joins(:item).where(items: { sku: })
end

#number_of_circuits ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 457

def number_of_circuits
  circuits = 0
  if integration_kits.sum(:quantity).positive?
    circuits = integration_kits.sum(:quantity)
  else
    electrical_plan_controls.each { |c| circuits += (c.item.spec_value(:circuits_required).to_i * c.quantity) }
  end
  circuits
end

#ot_sensors ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 436

def ot_sensors
  line_items_for_sku(['SCP-120', *ItemConstants::POWER_MODULATORS])
end

#other_items_table ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 361

def other_items_table
  oi_table = []
  other_items.each do |line_item|
    item_name = begin
      "#{line_item.item.sku} - #{line_item.item.name}"
    rescue StandardError
      'n/a'
    end
    oi_table << [item_name, line_item.quantity]
  end
  oi_table
end

#power_kits ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 428

def power_kits
  line_items_for_sku('SR-PWR-KIT')
end

#power_modules ⇒ Object

Alias for All_line_items#power_modules

Returns:

  • (Object) —

    All_line_items#power_modules

See Also:



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# File 'app/services/item/heating_element_plan.rb', line 408

delegate :power_modules, to: :all_line_items

#relays ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 416

def relays
  all_line_items.relay_panels
end

#requires_breaker_size_vs_circuit_length_table? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/item/heating_element_plan.rb', line 505

def requires_breaker_size_vs_circuit_length_table?
  if heating_system.match(/roof|pipe/i) && (has_item?(ItemConstants::PIPE_TRACING_CABLE_5_WATT_PER_FT_SPOOL_SKUS) || has_item?(ItemConstants::PIPE_TRACING_CABLE_8_WATT_PER_FT_SPOOL_SKUS) || has_item?(ItemConstants::PIPE_TRACING_CABLE_10_WATT_PER_FT_SPOOL_SKUS))
    return true
  end

  false
end

#roof_and_gutter_breaker_recommendations(volts) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 497

def roof_and_gutter_breaker_recommendations(volts)
  if volts == 120
    "<table class='rg-breakers'><tr><th>Max Length</th><th>Breaker</th></tr><tr><td>107 ft</td><td>15 A 120V GFEP</td></tr><tr><td>142 ft</td><td>20 A 120V GFEP</td></tr><tr><td>214 ft</td><td>30 A 120V GFEP</td></tr></table>"
  elsif volts == 240
    "<table class='rg-breakers'><tr><th>Max Length</th><th>Breaker</th></tr><tr><td>214 ft</td><td>15 A 240V GFEP</td></tr><tr><td>286 ft</td><td>20 A 240V GFEP</td></tr><tr><td>429 ft</td><td>30 A 240V GFEP</td></tr></table>"
  end
end

#roof_and_gutter_breaker_size(volts, length) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 477

def roof_and_gutter_breaker_size(volts, length)
  # length will be in inches, so lets convert it to feet
  length /= 12
  if volts == 120
    case length
    when 0..107 then 15
    when 108..142 then 20
    else 30
    end
  elsif volts == 240
    case length
    when 0..214 then 15
    when 215..286 then 20
    else 30
    end
  else # not set up for that voltage, so just give the max
    30
  end
end

#room_label ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 573

def room_label
  is_outdoor? ? 'Area' : 'Room'
end

#sensors ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 449

def sensors
  all_line_items.has_floor_sensor
end

#shorten_text(text, num_chars = 32) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 828

def shorten_text(text, num_chars = 32)
  res = text
  res = "#{text.to_s[0..(num_chars - 4)]} ..." if text.to_s.length > num_chars
  res
end

#slab_heat_cable_watts_per_sqft ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 171

def slab_heat_cable_watts_per_sqft
  {
    '3': 23,
    '3.0': 23,
    '4': 17,
    '4.0': 17,
    '5': 15,
    '5.0': 15
  }.fetch((cable_spacing || 3.0).round(2).to_s.to_sym, 23)
end

#snow_melt_cable_watts_per_sqft ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 155

def snow_melt_cable_watts_per_sqft
  {
    '2.5': 'Up to 60',
    '3': 'Up to 50',
    '3.0': 'Up to 50',
    '3.5': 'Up to 43',
    '4': 'Up to 38.5',
    '4.0': 'Up to 38.5',
    '4.5': 'Up to 33',
    '5': 'Up to 31.5',
    '5.0': 'Up to 31.5',
    '6': 'Up to 25',
    '6.0': 'Up to 25'
  }.fetch((cable_spacing || 3.0).round(2).to_s.to_sym, 50)
end

#special_instructions ⇒ Object

TODO: Is this needed? We already put that in the instructions if an AIR-SS is present.



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# File 'app/services/item/heating_element_plan.rb', line 235

def special_instructions
  instructions = []
  if ot_sensors.present?
    instructions << "* Installers may locate the OT Sensor at their discretion.
    Placement shown is a recommendation only. Sensor must be inside metal conduit
    (capped off for replaceability) between two passes of heat cable."
  end
  if has_item?('SLAB-SS') || has_item?('SCE-SLAB-SS-56')
    instructions << "# Installers may locate Slab Sensor at their discretion.
    Placement shown is a recommendation only. Sensor should be located between
    two passes of Heating Cable where snow and ice problems normally occur.
    Sensor must be embedded horizontally with its top flush with the surroundings
    with the help of the accompanying installation plate."
  end
  instructions
end

#tempzone_thick_cable_watts_per_sqft ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 138

def tempzone_thick_cable_watts_per_sqft
  {
    '2.5': 17.76,
    '2.9': 15.3,
    '3': 14.8,
    '3.0': 14.8,
    '3.13': 14.2,
    '3.5': 12.7,
    '3.75': 11.84,
    '4': 11.1,
    '4.0': 11.1,
    '4.75': 9.3,
    '5': 8.9,
    '5.0': 8.9
  }.fetch((cable_spacing || 3.0).round(2).to_s.to_sym, 14.8)
end

#tempzone_thin_cable_watts_per_sqft ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 121

def tempzone_thin_cable_watts_per_sqft
  {
    '2.5': 14.4,
    '2.9': 12.4,
    '3': 12,
    '3.0': 12,
    '3.13': 11.5,
    '3.5': 10.3,
    '3.75': 9.6,
    '4': 8.7,
    '4.0': 8.7,
    '4.75': 7.6,
    '5': 7.2,
    '5.0': 7.2
  }.fetch((cable_spacing || 3.0).round(2).to_s.to_sym, 12)
end

#thermostats ⇒ Object

Alias for All_line_items#thermostats

Returns:

  • (Object) —

    All_line_items#thermostats

See Also:



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# File 'app/services/item/heating_element_plan.rb', line 412

delegate :thermostats, to: :all_line_items

#total_amps ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 396

def total_amps
  heating_elements_lines.to_a.sum { |he| he.amps || 0 }.round(2)
end

#total_btu_per_hr ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 387

def total_btu_per_hr
  heating_elements_lines.to_a.sum { |he| he.btu_per_hr || 0 }.round
end

#total_length ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 400

def total_length
  heating_elements_lines.to_a.sum { |he| he.length || 0 }
end

#total_watts ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 374

def total_watts
  heating_elements_lines.to_a.sum do |he|
    value = if he.respond_to?(:watts)
              he.watts
            elsif he.is_a?(Hash)
              he[:watts] || he['watts']
            else
              0
            end
    (value || 0).to_f
  end.round
end

#watts_per_sqft(watts_only = false) ⇒ Object 



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# File 'app/services/item/heating_element_plan.rb', line 63

def watts_per_sqft(watts_only = false)
  watts = case heating_system
          when /TempZone Flex Roll|TempZone Shower Mat|TempZone Easy Mat|Shower Mat Bench/i
            15
          when 'TempZone Custom Mat'
            watts_only ? 12.5 : '12-15'
          when /Environ Flex Roll|Environ Easy Mat/i
            12
          when 'Snow Melt Mat'
            if cable_spacing.to_f.round == 4
              'Up to 38.5'
            else
              (cable_spacing.to_f.round == 5 ? 'Up to 31.5' : 'Up to 50')
            end
          when 'Snow Melt PowerMat'
            'Up to 50'
          when 'Snow Melt OmniMat'
            'Up to 38.5'
          when 'Snow Melt EcoMat'
            'Up to 31.5'
          when 'Slab Heat Mat'
            20
          when 'TempZone Thin Cable'
            tempzone_thin_cable_watts_per_sqft
          when 'TempZone Cable'
            tempzone_thick_cable_watts_per_sqft
          when 'TempZone Ruler Cable'
            tempzone_thick_cable_watts_per_sqft
          when 'Snow Melt Cable'
            snow_melt_cable_watts_per_sqft
          when 'Slab Heat Cable'
            slab_heat_cable_watts_per_sqft
          when /roof/i
            if watts_only
              heating_system_voltage == 208 ? 6.5 : 7.5
            else
              heating_system_voltage == 208 ? '4-9' : '5-10'
            end
          when /pipe/i
            if has_item?(ItemConstants::PIPE_TRACING_CABLE_5_WATT_PER_FT_SPOOL_SKUS)
              5
            elsif has_item?(ItemConstants::PIPE_TRACING_CABLE_8_WATT_PER_FT_SPOOL_SKUS)
              8
            elsif has_item?(ItemConstants::PIPE_TRACING_CABLE_10_WATT_PER_FT_SPOOL_SKUS)
              10
            end
          end
  return watts if watts_only || watts.nil?

  text = if /roof|pipe/i.match?(heating_system)
           "#{watts} W/Ft."
         else
           "#{watts} W/Sq.ft."
         end
  text += " @ #{cable_spacing}\" spacing" if !is_environ? && cable_spacing
  text
end