Dettson HGRC Installation Instruction
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Dettson HGRC Installation Instruction

Gas fired hot water boiler and water heater
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Model Series :
HGRC
Manufactured by :
UTC Canada Corporation
Division ICP
3400, Industrial Boulevard
Sherbrooke, Quebec J1L 1V8
GAS FIRED
HOT WATER BOILER
AND WATER HEATER
Caution : Do not tamper with
the unit or its controls.
Call a qualified service
technician.
Save these instructions for future reference.
Printed in Canada
2006/02/13
X40037 Rev. G

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  • Page 1 Model Series : HGRC Manufactured by : UTC Canada Corporation Division ICP 3400, Industrial Boulevard Sherbrooke, Quebec J1L 1V8 GAS FIRED HOT WATER BOILER AND WATER HEATER Caution : Do not tamper with the unit or its controls. Call a qualified service technician.

  • Page 2: Part 1 Installation

    THIS APPLIANCE. HGRC LINE DANGER, WARNING AND CAUTION The “HGRC” series boilers and water heaters are natural gas or propane gas fired units and are available The words DANGER, WARNING and CAUTION are with inputs ranging from 68,000 Btu/h to 340,000 Btu/h.
  • Page 3 CAN/CGA B149.1 or B149.2 Installation Codes 2.4) Type of ignition for current guidelines. The HGRC series is available with 3 types of ignition: a. A pilot that is burning continuously; 4.1) Location b. An intermittent pilot that lights on demand only;...

  • Page 4: Combustion Air Supply

    FIGURE 2 Installation of accessories supplied with the unit DNS 0295 Rev. B 4.2) Minimum clearances COMBUSTION AIR SUPPLY The following clearances from combustible materials The unit location must provide sufficient fresh air for must be respected: proper combustion. Consult the appropriate sections of the CAN/CGA B149 code for more details.

  • Page 5: Electrical Wiring

    TABLE 1 Recommended gas piping dimensions Distance from the unit gas regulator, in equivalent feet, for a pressure loss of less than 0.5" W.C. Model 0-25 25-50 50-100 100-200 200-300 300-500 HGRC068 ½" ½" ¾" 1" 1" 1" HGRC105 ¾" ¾"...

  • Page 6: Water Piping

    16 gauge TEW (105°C) wire or DRAFT HOOD equivalent. The draft hood delivered with your HGRC unit must be installed without any modifications and fastened to the WATER PIPING collar of the appliance by way of metal screws.
  • Page 7 10.3) Motorized vent damper (when used) To manually open the damper, please follow these The HGRC unit can be equipped with a motorized steps: damper device that closes the vent pipe when the main 1. Remove the vent damper junction box cover;...
  • Page 8 TABLE 2 Side wall venting selection chart Reducer 1 Reducer 2 Model Package # Power vent Flue-pipe Vent hood (power vent) (draft hood) HGRC68 SG-1 5"-4" 5" VH-1-4 HGRC105 SG-2 6"-4" 6" VH-1-4 HGRC136 SG-3 6"-4" 6" VH-1-4 HGRC170 SG-4 6"-4"...

  • Page 9: Part 2 Operation

    This position is not applicable for All existing piping must be drained and cleaned with fresh water circulation before filling the new HGRC unit. intermittent pilot systems. The operation will be erratic.
  • Page 10 Models Pressure ("W.C.) Pression ("W.C.) Natural Gas Propane Gas 2.4.5) Gas leaks HGRC 068 10.0 @ 340 Check the whole system for gas leaks after the installation is completed. Use a solution of soap and water on the pipe joints.

  • Page 11: Part 3 Maintenance

    Drawer assembly (burner tray) CAUTION The installer must follow local regulations with Your HGRC boiler is equipped with a burner tray to allow you to remove the burners and manifold without respect to the installation of carbon monoxide dismantling the appliance. To remove the burner tray, (CO) detectors.
  • Page 12 PART 4 INFORMATION Model: Serial number: Boiler installation date: Service telephones - Day: Night: Dealer name and address: RESULTS OF START-UP TEST Gas inlet pressure: " W.C." Gas outlet pressure: " W.C." Heat exchanger water inlet temperature: °F or °C Heat exchanger water outlet temperature: °F or °C Water pressure of distribution system:...
  • Page 13 TABLE 5 Natural gas Input Minimum Output USGPM Pressure Recovery Model Input at 20°F loss rate (Btu/h) (Btu/h) (Btu/h) delta T (ft. of water) (USGPH) HGRC068 68,000 54,400 57.1 HGRC105 102,000 51,000 81,600 85.7 HGRC136 136,000 68,000 108,800 11.1 114.2 HGRC170 170,000 85,000...
  • Page 14 Technical data HGRC gas fired hot water boiler and water heater 68,000 to 340,000 BTU/h Temperature Rise / Output / Pressure (natural gas) Model Temperature Water Pressure Model Temperature Water Pressure Rise output loss Rise output loss HGRC HGRC T-°C T-°F USGPM...
  • Page 15 Technical data HGRC gas fired hot water boiler and water heater 68,000 to 340,000 BTU/h Apartment Buildings* Number of Minimum water heater capacity Minimum water heater capacity units USGPH (litres/hour) Storage capacity per unit (USG) Storage capacity per unit (litres) Instant.

  • Page 16: Technical Data

    Technical data HGRC gas fired hot water boiler and water heater 68,000 to 340,000 BTU/h Motels and Hotels Minimum water heater capacity per unit Number Minimum water heater capacity per unit of units (USGPM) (litres/hour) Storage capacity per unit (USG) Storage capacity per unit (litres) Instant.
  • Page 17 FIGURE 3 DNS-0608 Rev. B Model Overall Draft Vent pipe Gas valve HGRC dimensions hood diameter diameter "LA" "LB" "LC" "LD" HGRC068 494 mm (19 7/16") 238 mm (9 3/8") 127 mm (5") 12,7 mm (1/2") HGRC105 558 mm (21 15/16") 558 mm (11 7/8") 152 mm (6")
  • Page 18 FIGURE 4.1 Wiring diagram, constantly burning pilot DNS-0281 Rev.A FIGURE 4.2 Wiring diagram, constant pilot with motorized damper DNS-0282 Rev.A...
  • Page 19 FIGURE 4.3 Wiring diagram, intermittent electronic pilot - WR DNS-0283 Rev.A FIGURE 4.4 Wiring diagram, intermittent electronic pilot - HON DNS-0284 Rev. A...
  • Page 20 FIGURE 4.5 Wiring diagram, intermittent electronic pilot (HON) with motorized damper DNS-0285 Rev.A FIGURE 4.6 Wiring diagram, intermittent hot surface ignition pilot - HON DNS-0286 Rev B...
  • Page 21 FIGURE 4.7 Wiring diagram, intermittent hot surface ignition pilot with motorized damper DNS-0287 Rev B FIGURE 4.8 Wiring diagram, constant pilot with side wall venting DNS-0288 Rev.A...
  • Page 22 FIGURE 4.9 Wiring diagram, constant pilot - side wall vent - motorized damper DNS-0289 Rev.A FIGURE 4.10 Wiring diagram, intermittent electronic pilot WR & side wall venting DNS-0290 Rev.A...
  • Page 23 FIGURE 4.11 Wiring diagram, intermittent electronic pilot HON & side wall venting DNS-0291 Rev.A FIGURE 4.12 Wiring diagram, intermittent electronic pilot HON - side wall vent - motorized damper DNS-0292 Rev.A...
  • Page 24 FIGURE 4.13 Wiring diagram, intermittent hot surface pilot with side wall venting X00165 Rev. C FIGURE 4.14 Wiring diagram, intermittent hot surface pilot - side wall venting - motorized damper DNS-0294 Rev.B...
  • Page 25 FIGURE 5 Typical plumbing arrangement for space heating DNS-0296 Rev. B...
  • Page 26 COMPONENTS REPLACEMENT PARTS...
  • Page 27 PARTS LIST Model : HGRC (HGRC068 to HGRC340) DNS-0392 Rev.C...
  • Page 28 PARTS LIST Model : HGRC (HGRC068 to HGRC340) ITEM DESCRIPTION NUMBER COMMENTS Heat exchanger B01234-0X HGRC heating Heat exchanger B01235-0X HGRC hot water Intermediary heat exchanger header (Steel) K01001 Without inlet/outlet connector Intermediary heat exchanger header (Stainless steel) K01002 Without inlet/outlet connector...
  • Page 29 HGRC (Dim 0.111) B01238-01 HGRC low altitude only (each) 56B High altitude natural gas orifice HGRC (Dim 0.104) B01238-03 HGRC high altitude only (each) 56C Low altitude propane gas orifice HGRC (Dim 0.064) B01238-02 HGRC low altitude only (each) 56D High altitude propane gas orifice HGRC (Dim 0.055) B01238-04 HGRC high altitude only (each)

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