background image

33

Natural Gas

Minimum:  4.5" w.c.

Maximum: 10.0" w.c.

Propane Gas

Minimum: 11.0" w.c.

Maximum: 13.0" w.c.

INLET GAS SUPPLY PRESSURE

If supply pressure differs from table, make the necessary ad-
justments to pressure regulator, gas piping size, etc., and/or
consult with local gas utility.

5. Turn OFF gas to furnace at the manual shutoff valve and

disconnect manometer.  Reinstall plug before turning on
gas to furnace.

6. Turn OFF any unnecessary gas appliances stated in step

3.

Gas Line

Gas
Shutoff
Valve

Gas Line 
To Furnace

Drip Leg Cap 
With Fitting

Manometer Hose

Manometer

Open To
Atmosphere

Measuring Inlet Gas Pressure (Alt. Method)

Figure 45

G

AS

 M

ANIFOLD

 P

RESSURE

 M

EASUREMENT

 

AND

 A

DJUSTMENT

T

O

 

PREVENT

 

UNRELIABLE

 

OPERATION

 

OR

 

EQUIPMENT

 

DAMAGE

THE

 

GAS

 

MANIFOLD

 

PRESSURE

 

MUST

 

BE

 

AS

 

SPECIFIED

 

ON

 

THE

 

UNIT

 

RATING

 

PLATE

. O

NLY

 

MINOR

 

ADJUSTMENTS

 

SHOULD

 

BE

 

MADE

 

BY

 

ADJUSTING

 

THE

 

GAS

 

VALVE

 

PRESSURE

 

REGULATOR

.

CAUTION

Only small variations in gas pressure should be made by adjust-
ing the gas valve pressure regulator.  The manifold pressure
must be measured with the burners operating.  To measure and
adjust the manifold pressure, use the following procedure.

1. Turn OFF gas to furnace at the manual gas shutoff valve

external to the furnace.

2. Turn off all electrical power to the system.
3. Outlet pressure tap connections:

a. Honeywell VR9205 valve: Remove the outlet pressure

tap plug.  Install an 1/8" NPT hose barb fitting into the
outlet pressure tap.

b. White-Rodgers 36J54 valve: Back outlet pressure test

screw (inlet/outlet pressure tap) out one turn
(counterclockwise, not more than one turn).

4. Attach a hose and manometer to the outlet pressure barb

fitting (Honeywell valve) or outlet pressure tap (White-
Rodgers valve).

5. Turn ON the gas supply.
6. Turn on power and close thermostat “R” and “W1” contacts

to provide a call for low stage heat.

7. Measure the gas manifold pressure with burners firing.

Adjust manifold pressure using the 

Manifold Gas Pressure

table shown below.

8. Remove regulator cover screw from the low (LO) outlet

pressure regulator adjust tower and turn screw clockwise
to increase pressure or counterclockwise to decrease
pressure.  Replace regulator cover screw.

9. Close thermostat “R” and “W2” contacts to provide a call

for high stage heat.

10. Remove regulator cover screw from the high (HI) outlet

pressure regulator adjust tower and turn screw clockwise
to increase pressure or counterclockwise to decrease
pressure.  Replace regulator cover screw.

11. Turn off all electrical power and gas supply to the system.
12. Remove the manometer hose from the hose barb fitting

or outlet pressure tap.

13. Replace outlet pressure tap:

a. Honeywell VR9205 valve: Remove the 1/8" NPT hose

barb fitting from the outlet pressure tap.  Replace the
outlet pressure tap plug and seal with a high quality
thread sealer.

b. White-Rodgers 36J54 valve: Turn outlet pressure test

screw in to seal pressure port (clockwise, 7 in-lb
minimum).

14. Turn on electrical power and gas supply to the system.
15. Close thermostat contacts “R” and “W1/W2” to energize

the valve.

Using a leak detection solution or soap suds, check for leaks at
outlet pressure tap plug (Honeywell valve) or screw (White-Rodg-
ers valve).  Bubbles forming indicate a leak.  SHUT OFF GAS AND
REPAIR ALL LEAKS IMMEDIATELY!

NOTE: 

For gas to gas conversion, consult your dealer for

appropriate conversion.

Range

Nom inal

Natural

Low  Stage 

1.6 - 2.2"  w .c.

1.9" w .c.

High Stage

3.2 - 3.8"  w .c.

3.5" w .c.

Propane

Low  Stage 

5.7 - 6.3"  w .c.

6.0" w .c.

High Stage

9.7 - 10.3" w .c.

10.0" w .c.

M anifold  Gas   Pre s s ure

Gas

G

AS

 I

NPUT

 R

ATE

 M

EASUREMENT

 (N

ATURAL

 G

AS

 O

NLY

)

The actual gas input rate to the furnace must never be greater
than that specified on the unit rating plate.  To measure natural
gas input using the gas meter, use the following procedure.

1. Turn OFF the gas supply to all other gas-burning appliances

except the furnace.

2. While the furnace is operating at high fire rate, time and

record one complete revolution of the gas meter dial,
measuring the smallest quantity, usually the dial that
indicates 1/2 cu. ft. per revolution.  You will use this
number to calculate the quantity of gas in cubic ft. if
the furnace would consume if it ran steadily for one
hour (3600 seconds).

Содержание *CVC96

Страница 1: ...is manual TABLE OF CONTENTS SAFETY CONSIDERATIONS 3 SHIPPING INSPECTION 4 ELECTROSTATIC DISCHARGE ESD PRECAUTIONS 4 TO THE INSTALLER 4 PRODUCT DESCRIPTION 4 FEATURES 4 PRODUCT APPLICATION 5 LOCATION R...

Страница 2: ...ULATOR BLOWER SPEEDS 34 BLOWER HEAT OFF DELAY TIMINGS 36 COMFORTNET SYSTEM 37 OVERVIEW 37 AIRFLOW CONSIDERATIONS 37 FOSSIL FUEL APPLICATIONS 37 CTK0 WIRING 38 COMFORTNET SYSTEM ADVANCED FEATURES 38 FU...

Страница 3: ...tion GOODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES IF YOU INSTALL OR PERFORM SERVICE ON THIS UNIT YOU ASSUME RESPONSIBILITY FOR...

Страница 4: ...est for inspection by carrier s agent must be made in writing immediately Thefurnacemustbecarefullyinspectedonarrivalfordamage and bolts or screws which may have come loose in transit In the event of...

Страница 5: ...ns Aroomthermostatisusedtocontrolthefurnace Fixed jumpers that provide continuous heating CANNOT be usedandcancauselongtermequipmentdamage Returnairductsareprovidedandsealedtothefurnace A return air t...

Страница 6: ...ications and Considerations for leveling of horizontal furnaces Ensure upflow or horizontal furnaces are not installed directlyoncarpeting oranyothercombustiblematerial Theonlycombustiblematerialallow...

Страница 7: ...ns on combustible flooring CVC96 MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS INCHES NOTES For servicing or cleaning a 24 front clearance is required Unit connections electrical flue and drain may nece...

Страница 8: ...TE Ductwork must never be attached to the back of the furnace Contact your distributor for proper airflow requirements and number of required ductwork connections Refer to Recommended In stallation Po...

Страница 9: ...ain trap Additionally the appropriate downward piping slope must be maintained from the drain trap to the drain loca tion Refer to Condensate Drain Trap and Lines for further de tails If the drain tra...

Страница 10: ...da gas furnaces are only certified to 4500 feet Gas Altitude Kit Orifice M anifold Pressure Pressure Switch Change Contact the distributor for a tabular listing of appropriate manufacturer s kits for...

Страница 11: ...se of Schedule 40 PVC or ABS cellular core Foam Core plastic pipe is also acceptable as a flue vent and intake pipe material PVC primer meeting ASTM F656 and PVC solvent cement meeting ASTM D2564 spec...

Страница 12: ...ibit sagging joint separation and or detachment from the furnace Horizontalrunsofvent fluepipingmustbesupportedeverythree to five feet and must maintain a 1 4 inch per foot downward slope back towards...

Страница 13: ...ling al lows service removal of air intake piping internal to the fur nace blower compartment The combustion air intake pipe can also be secured directly to the counterflow unit air in take pipe coupl...

Страница 14: ...w should be secured to the combustion air intake to prevent inadvertent blockage The tee used in the vent flue termination must be included when determining the number of elbows in the piping system 1...

Страница 15: ...IGHT ELBOWS Figure 13 Floor Use alternate vent combination air locations Field Supplied Drain Tee on Vent Pipe DOWN VENTING UPFLOW MODEL FURNACES ONLY Basement Crawlspace Slope 1 4 per foot min Conden...

Страница 16: ...ows and pipe diameter for construction of the vent flue and combustion air intake pipe systems of a direct vent dual pipe installation The number of elbows tabulated represents the number of el bows a...

Страница 17: ...h one pipe above the other These kits are NOTintended for use with single pipe indirect vent installations Refer to the directions furnished with the Side Wall Vent Kit p n0170K00000S or 0170K000001S...

Страница 18: ...Coupling Figure 20 NOTE Hoses are model specific and not all hoses will be shipped with all models UPFLOW MODEL INSTALLED VERTICALLY The trap and factory installed hoses remain as shipped The furnace...

Страница 19: ...TALLY WITH LEFT SIDE DOWN Minimum 5 3 8 clearance is required for the drain trap be neath the furnace Hose 6 Hose 5 Hose 11 Figure 23 1 Remove the clamps from the two drain tubes on the trap 2 Remove...

Страница 20: ...rt with a silver clamp 6 Mate the drain trap inlets to the hoses and secure with silver clamps 7 Line up the trap mounting holes with the pre drilled holes in the furnace and secure with 2 screws remo...

Страница 21: ...Y OR DEATH DUE TO ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING WARNING LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS WIRING ERRORS C...

Страница 22: ...To confirm proper unit grounding turn off the electrical power and perform the fol lowing check 1 Measure resistance between the neutral white connection and one of the burners 2 Resistance should me...

Страница 23: ...o the following figure 3 4 Thermostat Stage Delay Move to the ON position to select two stage thermostat or OFF to select single stage thermostat Move to the ON position to select Auto transition dela...

Страница 24: ...are identified as NEU TRAL Allfieldwiringmustconformtoapplicablecodes Connec tions should be made as shown Accessories Wiring Figure 32 If it is necessary for the installer to supply additional line v...

Страница 25: ...13 0 w c INLET GAS SUPPLY PRESSURE HIGH ALTITUDE DERATE When this furnace is installed at high altitude the appropriate HighAltitude orifice kit must be applied This is required due to the natural re...

Страница 26: ...ns figure for typical gas line connec tions to the furnace Gas piping must be supported external to the furnace cabinet so that the weight of the gas line does not distort the burner rack manifold or...

Страница 27: ...furnace cabinet where allowed by local codes COUNTERFLOW Figure 35 Drip Leg Plug in Main Gas Line Hole Alternate Union Location Manual Shut Off Valve upstream from ground joint pipe union Gas Valve Bu...

Страница 28: ...st conform to the safety stan dards of the National Board of Fire Underwriters NBFU Manual 58 For satisfactory operation propane gas pressure must be 10 WC at the furnace manifold with all gas applian...

Страница 29: ...urn air chamber CHECKING DUCT STATIC Refer to your furnace rating plate for the maximum ESP ex ternal duct static rating Total external static refers to everything external to the fur nace cabinet Coo...

Страница 30: ...ace is installed and shall be of such a size that the heat exchanger can be viewed for visual light inspection or such that a sampling probe can be inserted into the airstream The access panel must be...

Страница 31: ...control to the ON position 8 Replacetheburnercompartmentdoor 9 Openthemanualgasshutoffvalveexternaltothefurnace 10 Turn on the electrical power to the furnace 11 Adjust the thermostat to a setting ab...

Страница 32: ...l Coil Terminal M Common Terminal C White Rodgers Model 36J54 Connected to Manometer Figure 43B Gas Valve On Off Selector Switch Regulator Vent High Fire Regulator Adjust Low Fire Regulator Adjust Hon...

Страница 33: ...rew from the low LO outlet pressure regulator adjust tower and turn screw clockwise to increase pressure or counterclockwise to decrease pressure Replace regulator cover screw 9 Close thermostat R and...

Страница 34: ...emperaturerisebyadjustingthecirculatorblower speed Increaseblowerspeedtoreducetemperaturerise Decreaseblowerspeedtoincreasetemperaturerise Refer to Startup Procedure and Adjustment Circulator Blower S...

Страница 35: ...nd their corresponding taps Verify CFM by noting the number displayed on the dual 7 segment LED display 6 Themulti speedcirculatorbloweralsooffersseveralcustom ON OFF ramping profiles These profiles m...

Страница 36: ...Sheet The adjust setting already established by the cooling speed selection determineswhichsetofspeedsareavailable Theselected speed must provide a temperature rise within the rise range listed with t...

Страница 37: ...s the demand and sends it to the ECM motor If the outdoor unit or thermo stat is responsible for determining the demand it calcu lates the demand and transmits the demand along with a fan request to t...

Страница 38: ...r is recommended if installing a dual fuel fossil fuel system Failure to use the transformer in the outdoorunitcouldresultinoverloadingofthefurnacetransformer 1 2 R C 1 2 R C CTK0 Thermostat ComfortNe...

Страница 39: ...most recent furnace fault For display only Fault 3 FAULT 3 Next most recent furnace fault For display only Fault 4 FAULT 4 Next most recent furnace fault For display only Fault 5 FAULT 5 Next most rec...

Страница 40: ...5 2 50 3 75 4 100 of maximum airflow SET UP Submenu Item Indication for Display Only not User Modifiable Mode MODE Displays the current furnace operating mode CFM CFM Displays the airflow for the curr...

Страница 41: ...nstalled with a communicating compatible heat pump the system is recognized as a dual fuel system The balance point temperature should be set via the thermo stat DIAGNOSTICS Accessing the furnace s di...

Страница 42: ...ill immediately switch the induced draft blower gas valve and circulator blower to their high stage settings If the two stage thermostat changes the call from high heat to low heat the control will im...

Страница 43: ...d electrically automaticreset temperature ac tivated sensor The limit guards against overheating as a result of insufficient conditioned air passing over the heat exchanger AUXILIARY LIMIT The auxilia...

Страница 44: ...Refer to the Troubleshooting Chart for aid in determining the cause MAINTENANCE TO AVOID ELECTRICAL SHOCK INJURY OR DEATH DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY MAINTENANCE IF YOU MUST HAND...

Страница 45: ...drainage Check drain system for hose connection tightness blockage and leaks Clean or repair as necessary FLAME SENSOR QUALIFIED SERVICER ONLY Under some conditions the fuel or air supply can create a...

Страница 46: ...D On On Add 5 Off Off Minus 5 On Off Add 10 Off On Minus 10 On On A Off Off B On Off C Off On D On On A Off Off B On Off C Off On D On On Disabled Off Enabled On Disabled Off Enabled On 25 Off Off 50...

Страница 47: ...ALTERNATES WITH F L 0 b 1 b 6 1 2 b 9 L O b 7 F C 2 b 5 b 3 b 4 d 0 0140F01169 REV A C 1 HIGH STAGE HEAT PUMP HEAT P 1 P 2 E F AUXILIARY SWITCH OPEN P 1 O n E 4 H I INTERNAL CONTROL FAULT NO POWER NO...

Страница 48: ...Call for Service icon illuminated ComfortNet thermostat scrolls Check Furnace message E0 Furnace lockout due to an excessive number of ignition retries 3 total LOCKOUT E0 Failure to establish fame Ca...

Страница 49: ...rs and ductwork for blockage Clean flters or remove obstruction Check circulator blower speed and performance Correct speed or replace blower motor if necessary Check burners for proper alignment Chec...

Страница 50: ...d improperly Blocked fue and or inlet air pipe blocked drain system or weak induced draft blower Incorrect pressure switch set point or malfunctioning switch contacts Loose or improperly connected wir...

Страница 51: ...ontrol module has lost communications with circulator blower motor MOTOR COMM b1 Loose wiring connection at circulator motor control leads Failed circulator blower motor Failed integrated control modu...

Страница 52: ...t scrolls Check Furnace message b7 MOTOR PARAMS b7 Furnace operates at reduced performance or Integrated control module LED display provides b9 error code b9 LOW ID AIRFLOW B9 Blocked filters Restrict...

Страница 53: ...53 THIS PAGE LEFT INTENTIONALLY BLANK...

Страница 54: ...AMPS LIMIT CONTROL AUXILIARY AUTO RESET PK WARNING DISCONNECT TRANSFORMER 40 VA PU GY N NO 3 BR 4 UNIT MUST BE PERMANENTLY GROUNDED AND CONFORM TO N E C AND LOCAL CODES COLOR CODES 1 E SWITCH PRESSUR...

Страница 55: ...t vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL...

Страница 56: ...re They are simple to service and forgiving to operate We use quality materials and components Finally every unit is run tested before it leaves the factory That s why we know There s No Better Qualit...

Отзывы: