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Variable Speed, 2-Stage
Upflow / Horizontal and Downflow / Horizontal,
Gas-Fired Furnaces, “Fan Assisted
Combustion System”

A341789P03

Installer’s Guide

Downflow / Horizontal*

Upflow / Horizontal*

For VENT SIZING INFORMATION see:

USA —

National Fuel Gas Code ......... ANSI Z223.1/NFPA 54 (latest version)

CANADA —

Natural Gas Installation Code ...... CAN/CGA-B149.1 (latest version)
Propane Installation Code ............. CAN/CGA-B149.2 (latest version)

USA/CANADA ALTERNATE —

Category I Venting Guide ......... Pub. No. 18-CH23D1 (latest version)

*Horizontal Conversion for these furnaces may be left or right side rotation.

ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES

IMPORTANT —

This Document is 

customer property

 and is to remain with this unit.

Please return to service information pack upon completion of work.

*__First letter may be “A” or “T”

1 8 - CD2 0 D1 - 1 8

AVAILABLE IN FRENCH CANADIAN (FC)

*UD060R9V3K
*UD080R9V3K
*UD080R9V4K
*UD100R9V3K

*UD100R9V5K
*UD120R9V5K
*UD140R9V5K
*DD060R9V3F

*DD080R9V3F
*DD100R9V5F
*DD120R9V5F

Summary of Contents for DD060R9V3F Series

Page 1: ...est version USA CANADA ALTERNATE Category I Venting Guide Pub No 18 CH23D1 latest version Horizontal Conversion for these furnaces may be left or right side rotation ALL phases of this installation mu...

Page 2: ...temperature rise and venting according to the manufacturer s instructions 10 This product must be gas piped by a Licensed Plumber or Gas Fitter in the Commonwealth of Massachusetts Safety signal word...

Page 3: ...n these instructions Category I defined on page 13 CAUTION To prevent shortening its service life the furnace should not be used as a Construction Heater during the finishing phases of construction un...

Page 4: ...4 18 CD20D1 18 Installer s Guide From Dwg 21C341699 Rev 4 UD R9V K OUTLINE DRAWING ALL DIMENSIONS ARE IN INCHES...

Page 5: ...wg 21C341700 Sh 1 Rev 0 DD R9V F OUTLINE DRAWING ALL DIMENSIONS ARE IN INCHES MODEL A B C D DD060R9V3F DD080R9V3F 17 1 2 9 5 8 16 1 4 16 DD100R9V5F 21 13 1 16 19 3 4 19 1 2 DD120R9V5F 24 1 2 15 5 16 2...

Page 6: ...looring For vertical downflow application subbase BAYBASE205 must be used between the furnace and combustible flooring When the downflow furnace is installed vertically with a cased coil a subbase is...

Page 7: ...lated caulked vapor barrier etc may need additional air provided as described for con fined space Confined spaces are installations with less than 50 cu ft of space per 1000 BTU hr input from all equi...

Page 8: ...vibration to the annoyance level When the furnace is located in a utility room adjacent to the living area the system should be carefully designed with returns which minimize noise transmission throu...

Page 9: ...ace If only the front of the furnace is accessible it is recom mended that both supply and return air plenums are removable 8 When replacing a furnace old duct work should be cleaned out Thin cloths s...

Page 10: ...ALLATION With the filter removed the filter rack is compressed and then inserted into the bottom of the furnace The retaining screw pin on each side inserts into engagement holes at the bottom of the...

Page 11: ...Leave the bottom panel in place e After the side cutout is made following the directions in the Return Air Duct Connections section on pages 8 and 9 compress the filter rack and reinstall in the side...

Page 12: ...mine the location to be used The furnace cabinet has dimples for location of the alternate furnace clips Side return only Pre drill clearance holes with a 3 16 drill Bottom return holes are pre drille...

Page 13: ...X20X1 13 1 8 24 1 2 2 16X20X1 11 5 8 Location dimension is from end of duct to the screw holes for the bracket VENT PIPING These furnaces have been classified as Fan Assisted Combus tion System Catego...

Page 14: ...other good venting practices as stated in the venting section of the National Fuel Gas Code ANSI Z223 1 latest edition 10 Vent connectors serving appliance vented by natural draft or non positive pre...

Page 15: ...ircuit board must be cut if optional humidistat is used The jumper must also be cut when applying an airflow command signal to the BK input such as with the variable speed single zone and multi zone s...

Page 16: ...ABLE SPEED 2 STAGE FURNACE 1 STAGE HEATING 1 STAGE COOLING USING A 1 STAGE HEATING 1 STAGE COOLING THERMOSTAT OUTDOOR SECTION WITHOUT TRANSFORMER W14 OUTDOOR UNIT NO TRANSFORMER SEE NOTE 6 SEE NOTE 7...

Page 17: ...BK on the circuit board must be cut if an optional Humidistat is installed h HUMIDISTAT HOOKUP If an optional humidistat is to be connected between R and BK the factory installed jumper between R and...

Page 18: ...e gas supply piping system at test pressures equal to or less than 1 2 psig CAUTION Use a backup wrench on the gas valve when installing gas piping to prevent damage to the gas valve and manifold asse...

Page 19: ...times to verify regulator setting e For the White Rodgers gas valve model 36G 1 Adjust low fire by removing the low adjustment regulator cover screw See Figure 29 2 To increase outlet pressure turn th...

Page 20: ...Important Reinstall the propane orifices to the same depth as the orifices supplied with the equipment See Table 14 for help in selecting orifices if orifice change is required Furnace input rate and...

Page 21: ...W1 thermostat contacts close signaling the control module to run its self check routine After the control module has verified that the 1st stage pressure switch contacts are open and the limit switch...

Page 22: ...d gas valve causing shutdown when the door is removed Operation with the door removed or ajar can permit the escape of dangerous fumes All panels must be securely closed at all times for safe operatio...

Page 23: ...ntrol module has shut the system down and gone into lockout the system must be manu ally reset before the unit will restart To reset turn the system power off then on then off and then on again within...

Page 24: ...place IFC Continuous OFF Check Power 2 Flashes System Lockout Retries or Recycles exceeded 3 Flashes Draft Pressure Error Possible problems a Venting problem b Pressure switch problem c Inducer proble...

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