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AND MAINTENANCE MANUAL
3035443
IAS 9-90:1991 Gas-Fired, Desiccant Type Dehumidifiers and Air Conditioners
Gas Unit Heaters, Gas Packaged Heaters, Gas Utility Heaters, And Gas-Fired Duct
Gas Unit Heaters, Gas Packaged Heaters, Gas Utility Heaters, And Gas-Fired Duct
Gas-Fired Central Furnaces [ANSI Z21.47:2016 Ed.7]
This manual must be kept with the appliance for future reference.
OPERATION, SERVICE
HP SERIES
AIR HEATER MODULE
Furnaces [ANSI Z83.8:2016 Ed.6]
Furnaces [CSA 2.6:2016 Ed.6]
Gas-Fired Central Furnaces [CSA 2.3:2016 Ed.7]
HP-USM-MAN-E-2016-2
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Summary of Contents for heatco HP Series
- Page 1 OPERATION, SERVICE AND MAINTENANCE MANUAL HP SERIES AIR HEATER MODULE 3035443 IAS 9-90:1991 Gas-Fired, Desiccant Type Dehumidifiers and Air Conditioners Gas Unit Heaters, Gas Packaged Heaters, Gas Utility Heaters, And Gas-Fired Duct Furnaces [ANSI Z83.8:2016 Ed.6] Gas Unit Heaters, Gas Packaged Heaters, Gas Utility Heaters, And Gas-Fired Duct Furnaces [CSA 2.6:2016 Ed.6]...
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Page 2: Table Of Contents
The Air Heater modules covered by these instructions become a component of a “Listed” product, subject to the guidelines of application provided in these instructions and designated by the Certifying Agency in the Manufacturer’s Listing Procedure The information provided in this manual applies to the air heater module, installed in the air handling / dehumidification unit and to its operation, maintenance, and service. -
Page 3: Inspection
Inspection on Arrival 1. Inspect equipment upon arrival in accordance with unit manufacturer’s instructions and follow their recommendations if any damage has occurred. 2. Prior to installation locate manufacturer’s rating plate and verify that furnace is equipped for the available fuel supply and power supply at the point of installation. -
Page 4: Outdoor Installation
Outdoor Installation The venting system is designed for direct discharge of flue gases to the outdoors. The vent discharge opening should be located to provide an unobstructed discharge to the outside. Vent duct should pitch down toward outlet, to ensure that any condensate that occurs in vent duct drains away from combustion blower fan housing. -
Page 5: Indoor Installation
Do not locate unit near building ventilators or exhausts, or areas where corrosive chemical vapors can be drawn into combustion air supply. WARNING! Gas-fired furnaces are not designed for use in hazardous atmospheres containing flammable vapors or combustible dust, in atmospheres containing chlorinated or halogenated hydrocarbons, or in applications with airborne substances containing silicone. -
Page 6: Horizontally Vented - Category Iii
Table 1 – Vent Connector Diameter Gas Input (Btuh) Gas Input (W) Diameter of Flue Vent 50,000 – 149,999 21,980 – 43,958 5” (126 mm) 150,000 – 400,000 43,960 – 117,228 6” (152 mm) 401,000 – 600,000 117,229 – 175,842 7”... -
Page 7: Separated Combustion
terminal must be installed with a minimum horizontal clearance of 4 ft. (1.2m) from electric meters, gas meters, regulators or relief equipment. Figure 4 – Indoor Horizontal Venting EACH APPLIANCE MUST HAVE ITS OWN INDIVIDUAL VENT PIPE AND TERMINAL. Do not connect vent system from horizontally vented units to other vent systems or a chimney. Through the wall vents shall not terminate over public walkways, or over an area where condensate or vapor could create a nuisance or hazard. - Page 8 Separated combustion systems may not be common vented. Each heater must have its own individual air supply and flue gas exhaust vent. If vent system application cannot meet the criteria provided or in diagrams below, contact a manufacturer of venting systems and materials for assistance with system design.
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Page 9: Gas Supply Piping And Connections
Gas Supply, Piping and Connections 1. Installation of piping must conform with local building codes and ordinances, or in the absence of local codes with ANSI Z223.1 the National Fuel Gas Code. In Canada, installation must be in accordance with CAN/CGA –B149.1 for Natural gas and B149.2 for propane units. -
Page 10: Gas Input
Gas Input Rate The correct heat capacity of the heater module is controlled by the burner orifices and the gas manifold pressure. The manifold pressure is factory set, but should be checked at the time of start-up as described below. FOR YOUR SAFETY The use and storage of gasoline or other flammable vapors and liquids in open containers... -
Page 11: Failure To Ignite
Failure to Ignite 1. On the initial start-up, or after heating unit has been off long periods of time, the first ignition trial may be unsuccessful due to need to purge air from manifold at start-up. 2. If ignition does not occur on the first trial, the gas and spark are shut-off by the ignition control and the control enters an inter-purge period of 15 seconds, during which the draft inducer continues to run. -
Page 12: Burner Flames
Figure 8C – Honeywell V8944 Gas Valve Burner Flames Prior to completing the start-up, check the appearance of the main burner flame. See Figures below for flame characteristics of properly adjusted Natural gas systems. Figure 9A Figure 9B Burner Flame @ High Fire 3.5” w.c. Manifold Burner Flame @ Start-up 1.2”... -
Page 13: Shutdown
Shutdown 1. Set thermostat or controller to lowest setting. 2. Turn off electrical supply to unit at disconnect switch. 3. Turn off manual gas supply. 4. Disconnect manifold and inlet pressure taps and re-install pipe plugs 5. Replace vestibule access panel or close door. Normal Operation 1. -
Page 14: Annual Maintenance & Inspection
Inspection & Maintenance Turn off all electrical power to the unit before inspection and servicing. Periodic Inspection Periodic maintenance inspections should be conducted during the heating season to ensure that combustion air openings are clear and free of any dirt or debris that might restrict combustion air. Also, inspect vent stack for any deterioration, blockages or debris. -
Page 15: Module Component Id
Module Component ID Combustion Air Flame Sensor Pressure Switch Hi Limit Switch Rollout Switch Manifold Pressure Induced Draft Fan Assy. Spark Igniter Motor Support Draft Inducer Bracket Motor... - Page 16 (Page left blank) Heatco Inc. 50 Heatco Court Cartersville, Ga. 30120...
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