background image

506842-01

Page 4  of  42

Issue 1132

GUH80C

 Gas Furnace

The 

GUH80C

 gas furnace is shipped ready

 

for installation 

in the upflow or horizontal right position (for

 

horizontal left 

position the combustion air pressure switch

 

must be 

moved).  The furnace is shipped with the bottom

 

panel in 

place.  The bottom panel must be removed if the

 

unit is to 

be installed in horizontal or upflow applications with

 

bottom 

return air.

The furnace is equipped for installation in natural gas

 

applications.  A conversion kit (ordered separately) is required

 

for  use in propane/LP gas applications.

Shipping and Packing List

1

 

-

 

Assembled Gas Furnace

1

 

-

 

Bag assembly containing the following:
2 - Screws

3 - Wire nuts

1 - Snap bushing

1 - Snap Plug

1 - Wire tie

1 - Vent warning label

1 - Owner’s manual and warranty card

Check equipment for shipping damage.  If you find any

damage, immediately contact the last carrier.

Safety Information

As with any mechanical equipment, personal injury can

result from contact with sharp sheet metal edges.  Be

careful when you handle this equipment.

  CAUTION

DANGER OF EXPLOSION!

  DANGER

There are circumstances in which odorant used with

LP/Propane gas can lose its scent.  In case of a leak,

LP/Propane gas will settle close to the floor and may be

difficult to smell.  An LP/Propane leak detector should

be installed in all LP applications.

Improper installation, adjustment, alteration, service or

maintenance can cause property damage, personal

injury or loss of life.  Installation and service must be

performed by a licensed professional installer (or

equivalent), service agency or the gas supplier.

  WARNING

Certifications

These units are CSA International certified to ANSI Z21.47.

In the USA, installation of gas furnaces must conform with

local building codes.  In the absence of local codes, units

must be installed according to the current National Fuel Gas

Code (ANSI-Z223.1).  The National Fuel Gas Code is

available from the following address:  

American National

Standards Institute, Inc., 11 West 42nd Street, New York,

NY 10036.

Clearances

Adequate clearance must be made around the air openings

into the vestibule area.  In order to ensure proper unit

operation, combustion and ventilation air supply must be

provided according to the current National Fuel Gas Code.

Vent installations must be consistent with the venting tables

(in this instruction) and applicable provisions of local building

codes.

This furnace is CSA International certified for installation

clearances to combustible material as listed on the unit

nameplate and in the tables in Figures 8 and 12.  Accessibility

and service clearances must take precedence over fire

protection clearances.

Installed Locations

For installation in a residential garage, the furnace must be

installed so that the burner(s) and the ignition source are

located no less than 18 inches (457 mm) above the floor.

The furnace must be located or protected to avoid physical

damage by vehicles.  When a furnace is installed in a public

garage, hangar, or other building that has a hazardous

atmosphere, the furnace must be installed according to

recommended good practice requirements and current

National Fuel Gas Code.

Please refer to specification sheets for available accessories.

Содержание GUH80C

Страница 1: ...1 P506842 01 TABLE OF CONTENTS Unit Dimensions 2 GUH80C Parts Arrangement 3 GUH80C Gas Furnace 4 Shipping and Packing List 4 Safety Information 4 Use of Furnace as a Construction Heater 5 General 6 Co...

Страница 2: ...turn air 4 Return air from both sides 5 Bottom and one side return air 2 Flue outlet may be horizontal but furnace must be vented vertically 3 Optional external side return air filter kit cannot be us...

Страница 3: ...506842 01 Page 3 of 42 Issue 1132 Expanded View Figure 1...

Страница 4: ...a licensed professional installer or equivalent service agency or the gas supplier WARNING Certifications These units are CSA International certified to ANSI Z21 47 In the USA installation of gas furn...

Страница 5: ...must control the furnace The use of fixed jumpers that will provide continuous heating is not allowed The return air duct must be provided and sealed to the furnace Return air temperature range betwee...

Страница 6: ...wndraft can occur in the furnace vent pipe or chimney As a result combustion gases enter the living space creating a potentially dangerous situation In the absence of local codes concerning air for co...

Страница 7: ...aining the furnace the return air must be handled by ducts which are sealed to the furnace casing and which terminate outside the space containing the furnace This is especially important when the fur...

Страница 8: ...area of at least one square inch per 2 000 Btu 645 mm per 59 kW per hour of the total input rating of all equipment in the enclosure If the equipment room is located against an outside wall and the ai...

Страница 9: ...washer have been removed the rigid leg will not touch the blower housing Setting Equipment WARNING Do not install the furnace on its front or its back Do not connect the return air ducts to the back...

Страница 10: ...ty See Figure 9 2 Single side return air with optional return airbase See Figure 10 3 Bottom return air 4 Return air from both sides 5 Bottom and one side return air Figure 9 Single Side Return Air wi...

Страница 11: ...ceiling joists When straps are used to suspend the unit in this way support must be provided for both the ends The straps must not interfere with the plenum or exhaust piping installation Cooling coi...

Страница 12: ...wn the vent pipe and into the room This reverse flow of the flue gas may result in incomplete combustion and the formation of carbon monoxide gas This toxic gas might then be distributed throughout th...

Страница 13: ...PFLOW POSITION Top Vent Discharge The unit will not vent properly with the flue transition pointed down in the 6 o clock position The combustion air inducer may be rotated clockwise or counterclockwis...

Страница 14: ...brought into the unit from the bottom in order to accommodate the flue pipe Cut combustion air inducer tubing from 9 to 8 to avoid interference with inducer motor Remove make up box assembly 2 screws...

Страница 15: ...es WARNING Use self drilling sheet metal screws or a mechanical fastener to firmly secure the vent pipe to the round collar of the flue transition If self drilling screws are used to attach the vent p...

Страница 16: ...and free of obstructions Do not install a manual damper barometric draft regulator or flue restrictor between the furnace and the chimney Never connect a Category I appliance to a chimney that is serv...

Страница 17: ...d means except vent connectors of listed type B vent material which shall be assembled according to the manufacturer s instructions Joints between sections of single wall connector piping shall be fas...

Страница 18: ...onfigureations with zero lateral lengths are assumed to have no elbows in the vent system For all other vent configurations the vent system is assumed to have two 90 elbows For each additional 90 elbo...

Страница 19: ...onfigureations with zero lateral lengths are assumed to have no elbows in the vent system For all other vent configurations the vent system is assumed to have two 90 elbows For each additional 90 elbo...

Страница 20: ...Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving Two or More Category I Appliances Common Vent Capacity Type B Double Wall Vents with Type B Double Wall Connectors Serving...

Страница 21: ...Two or more Category I Appliances Table 8 NOTE Single appliance venting configureations with zero lateral lengths are assumed to have no elbows in the vent system For all other vent configurations the...

Страница 22: ...are located and other spaces of the building Turn on clothes dryers and any appliances not connected to the common venting system Turn on any exhaust fans such as range hoods and bathroom exhausts so...

Страница 23: ...The piping must be supported at proper intervals every 8 to 10 feet 2 44 to 3 01 m with suitable hangers or straps Install a drip leg in vertical pipe runs to the unit 5 A 1 8 N P T plugged tap or pr...

Страница 24: ...24 of 42 Issue 1132 Horizontal Applications Possible Gas Piping Configurations NOTE BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET Figure 27 NOTE BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABI...

Страница 25: ...ice to protect the furnace s electronic controls Precautions will help to avoid control exposure to electrostatic discharge by putting the furnace the control and the technician at the same electrosta...

Страница 26: ...neutral leg of the circuit being connected to one of the provided neutral terminals If a humidifier rated at greater than one amp is connected to this terminal it is necessary to use an external relay...

Страница 27: ...506842 01 Page 27 of 42 Issue 1132 Wiring Diagram Figure 32 GUH80C 045A3M 070B3M 090B4M 090C5M 110C5M 135D5M...

Страница 28: ...506842 01 Page 28 of 42 Issue 1132 Typical Field Wiring Diagram Figure 33 Figure 34 Integrated Control Automatic Hot Surface Ignition System...

Страница 29: ...ns exactly a fire or explosion may result causing property damage personal injury or death WARNING 6 Move switch on gas valve to OFF Do not force See Figure 35 7 Wait five minutes to clear out any gas...

Страница 30: ...curate reading shut off all other gas appliances connected to meter Supply Pressure Measurement A threaded plug on the inlet side of the gas valve provides access to the supply pressure tap Remove the...

Страница 31: ...n air inducer operation before allowing ignition trial The switch is factory set and requires no adjustment Temperature Rise After the furnace has been started and supply and return air temperatures h...

Страница 32: ...erature rise Fan Control The fan on time of 45 seconds is not adjustable The heat fan off delay amount of time that the blower operates after the heat demand has been satisfied may be adjusted by chan...

Страница 33: ...140 445 145 Medium 735 125 140 180 200 160 GUH80C090B4M PERFORMANCE Less Filter External Static Pressure in w c Air Volume Watts at Various Blower Speeds High Medium High Medium Low cfm Watts cfm Watt...

Страница 34: ...05 1340 175 2260 655 1945 425 1550 240 1400 185 0 20 2135 680 1865 465 1630 330 1280 190 2210 680 1895 450 1510 255 1350 200 0 30 2090 695 1830 480 1595 345 1235 200 2165 700 1850 465 1455 275 1285 21...

Страница 35: ...all wiring for loose connections 2 Check for the correct voltage at the furnace furnace operating Correct voltage is 120VAC 10 3 Check amp draw on the blower motor with inner blower panel in place Uni...

Страница 36: ...ve the combustion air inducer to avoid damaging blower gasket If gasket is damaged it must be replaced to prevent leakage 5 Remove the collector box located behind the combustion air inducer Be carefu...

Страница 37: ...inserts 16 Reinstall collector box and combustion air assembly Reinstall all screws to the collector box and combustion air inducer Failure to replace all screws may cause leaks Inspect gaskets for a...

Страница 38: ...seal between the return air and the room where the furnace is installed Return air duct Must be properly attached and provide an air seal to the unit Operating performance Unit must be observed during...

Страница 39: ...epair parts are available through independent Allied Air dealers When ordering parts include the complete furnace model number listed on the CSA International nameplate Example GUH80C045A3M All servic...

Страница 40: ...506842 01 Page 40 of 42 Issue 1132 START UP PERFORMANCE CHECK LIST UNIT SET UP...

Страница 41: ...506842 01 Page 41 of 42 Issue 1132 UNIT OPERATION...

Страница 42: ...mum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less t...

Отзывы: