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1. Remove the rubber plug from the front cover drain port (right

or left side, depending on the intended drain trap mounting).

2. Secure Hose A to front cover drain port with a red hose

clamp. Route hose to rear side panel grommet hole.

NOTE: For left side drainage, grommets will have to be relocated
to left side panel.

DRAIN
TRAP

FRONT COVER

DRAIN PORT

TUBE(S) 2

GREEN

HOSE

CLAMPS

(3 PLACES)

RIGHT SIDE

PANEL

RUBBER ELBOW 

DRAIN PORT

TUBE 1

SIDE PANEL

GROMMET

HOLES

HOSE

B

HOSE

 A

RUBBER

ELBOW

RED HOSE

CLAMP

SILVER HOSE CLAMP

Upright “Standard” Connections - Right Side

(Upflow Shown, Counterflow Similar)

FRONT COVER

DRAIN PORT

HOSE A

SIDE PANEL

DRAIN

 HOLES

TUBE(S) 2

DRAIN

TRAP

GREEN HOSE

CLAMPS

(3 PLACES)

TUBE 1

RUBBER

ELBOW

HOSE B

RUBBER

ELBOW

DRAIN PORT

RED  HOSE

CLAMP

SILVER  HOSE

CLAMP

Upright “Standard” Connections - Left Side

(Upflow Shown, Counterflow Similar)

3. Cut and remove 1/4 inch from the end of the drain port on

the rubber elbow.

4. Insert Tube 1 into rubber elbow drain port and secure with

silver hose clamp.  Angle tube outward toward front of
furnace.

5.

Right

 side drains

Cut 17 3/4 inches from the long end (end opposite the
bend) of Hose B, discarding the 17 3/4 inch piece and
saving the part with the bend.  Secure the remaining hose
to Tube 1 with a green hose clamp.  Route the other end of
Hose B to  front right side panel grommet hole.

Left

 side drains

Cut “X” inches from the long end of Hose B  and discard.
Refer to table for appropriate length to cut.  Secure remaining
hose to Tube 1 with a green hose clamp.  Route other end
of Hose B to front left side panel grommet hole.

Cabinet Width

(inches)

Models

(kBTU_Tons)

"X" Length to Cut From Long

End of  Hose B

045__30

070__30

070__40

090__40

090__50

115__50

24 1/2

None

17 1/2

21

7 inc hes

3 1/2 inches

6. Insert short end of each Tube 2 through side panel grommet

holes.  Secure tubes to Hose A and Hose B with green
hose clamps.  Ensure hoses and tubes maintain a
downward slope for proper drainage and that they are not
kinked or binding.

For details concerning mounting of the drain trap, refer to 

Section

X, Condensate Drain Lines and Drain Trap - Upright Drain Trap
Mounting.

A

LTERNATE

 V

ENT

/F

LUE

 D

RAIN

 H

OSE

 C

ONNECTIONS

Upright installations using the 

alternate

 vent/flue outlet will require

“right-side only” drain hoses to be connected as follows.  Refer to

Section IX, Vent/Flue Pipe and Combustion Air Pipe

 for details on

alternate vent/flue pipe connection.

1. Remove the rubber plug from the front cover right-side drain

port. Save for use in step 3.

2. Secure Hose A to front cover drain port with a red hose

clamp. Route hose to rear right side panel grommet hole.

RUBBER ELBOW

(EXTERNALLY

MOUNTED)

TUBE 1

GREEN HOSE

CLAMPS

(3 PLACES)

HOSE B

TUBE(S) 2

DRAIN TRAP

SIDE PANEL

GROMMET

HOLES

HOSE A

FRONT COVER

DRAIN PORT

RUBBER

ELBOW 

DRAIN PORT

RED HOSE

CLAMP

SILVER HOSE CLAMP

Upright “Alternate” Connections - Right Side Only

(Upflow Shown, Counterflow Similar)

3. Remove grommet from front right-side panel drain hole.

Seal hole in grommet with large end of plug.  Reinstall
grommet and plug into side panel drain hole.

4. Cut 1/4 inch from the end of the drain port on the externally

mounted rubber elbow.  Discard cut portion.

5. Insert Tube 1 into rubber elbow drain port and secure with

a silver hose clamp. Angle tube outward toward front of
furnace.

6. Cut 17 7/8 inches from the long end of Hose B and discard.
7. Secure remaining end of Hose B to exposed end of Tube 1

with a green hose clamp.  Route hose toward right side
panel grommet holes.

8. Insert short end of one Tube 2 through rear right side panel

grommet drain hole.  Secure tube to Hose A with a green
hose clamp.

9. Insert short end of remaining Tube 2 into Hose B from

rubber elbow and secure with green hose clamp.  Ensure
hoses and tubes maintain a downward slope for proper
drainage and are not kinked or binding.

For details concerning mounting of the drain trap, refer to the fol-
lowing section.

Summary of Contents for GCH9

Page 1: ...tall the product safely and to know it well enough to be able to instruct a customer in its safe use Safety is a matter of common sense a matter of thinking before acting Most dealers have a list of s...

Page 2: ...ER VENT FLUE AND COMBUSTION AIR PIPING PRACTICES 13 TERMINATION LOCATIONS 13 CANADIAN VENTING REQUIREMENTS 14 STANDARD FURNACE CONNECTIONS 14 ALTERNATE FURNACE CONNECTIONS 14 NON DIRECT VENT SINGLE PI...

Page 3: ...XVIII Troubleshooting 32 ELECTROSTATIC DISCHARGE ESD PRECAUTIONS 32 DIAGNOSTIC CHART 32 FAULT RECALL 32 RESETTING FROM LOCKOUT 32 XIX Maintenance 32 ANNUAL INSPECTION 32 FILTERS 32 BURNERS 33 INDUCED...

Page 4: ...warranty certificate is also supplied with the unit Read the warranty carefully and note what is covered Keep the warranty cer tificate in a safe location for future reference If additional informatio...

Page 5: ...e Pipe Connection Alternate 15 Rubber Elbow 16 Induced Draft Blower 17 Electrical Connection Inlets Alternate 18 Coil Front Cover Pressure Tap 19 Coil Front Cover Drain Port 20 Drain Line Penetrations...

Page 6: ...The input rate and temperature rise are set per the furnace rating plate 100 outside air is provided for combustion air requirements during construction Temporary ducting can be used II SAFETY II SAF...

Page 7: ...ly air opening and the combustible floor Exposure to contaminated combustion air will result in safety and performance related problems Do not install the furnace where the combustion air is exposed t...

Page 8: ...tions of use g If improper venting is observed during any of the above tests the common venting system must be corrected halogen type refrigerants cleaning solutions such as perchloroethylene printing...

Page 9: ...ipping heavily insulated caulked vapor barrier etc addi tional air may need to be provided using the methods described in 5 3 3 b or 5 3 4 Space Unconfined For purposes of this Code a space whose volu...

Page 10: ...directly with an additional room s of sufficient volume so that the combined volume of all spaces meets the criteria for an unconfined space The total input of all gas utilization equipment installed...

Page 11: ...ropriate in stallation positions ductwork connections and resulting airflow arrangements VII HO VII HO VII HO VII HO VII HORIZO RIZO RIZO RIZO RIZONT NT NT NT NTAL APPLI AL APPLI AL APPLI AL APPLI AL...

Page 12: ...s require an orifice change to compensate for the energy content difference between natural and propane gas High altitude installations may require both a pressure switch and an orifice change These c...

Page 13: ...nt flue pipe and a combustion air intake pipe Refer to the appropriate section for details concerning piping size length number of elbows furnace connections and terminations MATERIALS AND JOINING MET...

Page 14: ...rd against inadvertent blockage COMBUSTION AIR PIPE DIRECT VENT INSTALLATIONS On upflow units secure the combustion air intake pipe directly to the air intake coupling On counterflow units secure the...

Page 15: ...LT IN LEAKS CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES INCLUDING CARBON MONOXIDE 7 Upflow and Counterflow units For upright installations externally mount the rubber elbow to the ven...

Page 16: ...r of elbows in the piping system Pipe Size 4 inc 2 3 4 5 6 7 8 045_3 2 68 65 62 59 56 53 50 070_3 2 68 65 62 59 56 53 50 070_4 2 46 43 40 2 16 13 10 3 68 65 62 59 56 53 50 090_5 3 68 65 62 59 56 53 50...

Page 17: ...ter pipe can be used in place of 2 diameter pipe 4 Increased Clearance Configurations using 2 45 deg Long Sweep elbows should be considered equivalent to one 90 deg elbow VENT FLUE AND COMBUSTION AIR...

Page 18: ...furnace NOTE If the alternate vent flue outlet is utilized in an upright installation the drain trap and drain connections must be located on the same side as the alternate vent flue outlet In horizon...

Page 19: ...Hose B with green hose clamps Ensure hoses and tubes maintain a downward slope for proper drainage and that they are not kinked or binding For details concerning mounting of the drain trap refer to S...

Page 20: ...ht down side panel grommet holes Secure tubes to Hose A and Hose B using green hose clamps Ensure hoses and tubes maintain a downward slope for proper drainage and are not kinked or bound For details...

Page 21: ...must be sized in accordance with the maximum overcurrent pro tection specified on the unit rating plate An electrical disconnect must be provided at the furnace location NOTE Line polarity must be ob...

Page 22: ...Blower pressure switch is powered anytime the pressure switch is closed and provides 24 VAC humidifier control Remove the yellow wire and connect the supplied brown jumper wire to the pressure switch...

Page 23: ...plying the furnace must be properly sized based on the gas flow required specific gravity of the gas and length of the run The gas line installation must comply with local codes or in their absence wi...

Page 24: ...ctors and semi rigid tubing against physical and thermal damage when installed Ensure aluminum alloy tubing and connectors are coated to protect against external corrosion when in contact with masonry...

Page 25: ...ne gas leak Rust can reduce the level of odorant in propane gas Do not rely on your sense of smell Contact a local propane gas supplier about installing a gas detecting warning system If the presence...

Page 26: ...uipped with means to prevent operation of either unit unless the damper is in the full heat or cool position When the furnace is installed without a cooling coil it is recom mended that a removable ac...

Page 27: ...bility of flue gases escaping through the drain system FURNACE OPERATION Purge gas lines of air prior to startup Be sure not to purge lines into an enclosed burner compartment Check for leaks using an...

Page 28: ...NT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE THE GAS MANIFOLD PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE ONLY MINOR ADJUSTMENTS SHOULD BE MADE BY ADJUSTING THE GAS VALVE PRESSURE REGULATOR...

Page 29: ...rtially open position 2 Place thermometers in the return and supply ducts as close to the furnace as possible Thermometers must not be influenced by radiant heat by being able to see the heat exchange...

Page 30: ...MODE DIP SWITCH IS SET TO 2 STG POSITION The normal operational sequence in sequence is as follows R and W thermostat contacts close initiating a call for heat Integrated control module performs safet...

Page 31: ...Y CIRCUIT DESCRIPTION XVII SAFETY CIRCUIT DESCRIPTION XVII SAFETY CIRCUIT DESCRIPTION XVII SAFETY CIRCUIT DESCRIPTION GENERAL A number of safety circuits are employed to ensure safe and proper furnace...

Page 32: ...e least recent fault RESETTING FROM LOCKOUT Furnace lockout results when a furnace is unable to achieve igni tion after three attempts during a single call for heat It is character ized by a non funct...

Page 33: ...AME SENSOR QUALIFIED SERVICER ONLY Under some conditions the fuel or air supply can create a nearly invisible coating on the flame sensor This coating acts as an insulator causing a drop in the flame...

Page 34: ...E LEA RE LEA RE LEAVIN VIN VIN VIN VING AN INST G AN INST G AN INST G AN INST G AN INSTALL ALL ALL ALL ALLA A A A ATI TI TI TI TIO O O O ON N N N N Cycle the furnace with the thermostat at least three...

Page 35: ...kage proper length elbows and termination Check drain system Correct as necessary Correct pressure switch setpoint or contact motion Tighten or correct wiring connection Pressure switch hose blocked p...

Page 36: ...e due to improper gas pressure or combustion air Induced draft blower and circulator blower runs continuously No furnace operation Integrated control module diagnostic LED is flashing FIVE 5 flashes F...

Page 37: ...NT COVER PRESSURE SWITCH N O C GY BK PLUG CONNECTION FIELD SPLICE SWITCH TEMP OR 24V THERMOSTAT CONNECTIONS GR GND 115 VAC 24 VAC BLOWER COMPARTMENT DOOR SWITCH OPEN WHEN DOOR OPEN DOOR SWITCH BK GND...

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