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Unitary Products Group

ACCESSORY KIT INSTALLATION INSTRUCTIONS

1NP0347 - PROPANE CONVERSION - INDUCED COMBUSTION FURNACES

FOR USE IN THE FOLLOWING 90% MODELS:

GF9S, GY9S, GM9S, PS9, FL9S, FC9S, PT9, FL9T, FC9T, GM9T, PV9, FL9V, FC9V, GM9V, XYF90

FOR USE IN THE FOLLOWING 80% MODELS:

GY8S, GM8S, GR8S, PS8, FL8S, FC8S, PT8, FL8T, FC8T, GM8T, PV8, FL8V, FC8V, GM8V, LF80, LY8S,

LM8S, LL8S, LC8S, LL8V, LC8V, LM8V, XYF80

247585-UAI-A-0706

GENERAL

GENERALGENERAL

GENERAL

This kit is intended for the conversion of new equipment only,

from natural gas to propane gas operation.

All unit installations above 8,000 ft. (2,438 m) must be field

derated as required by the National Fuel Gas Code, ANSI

Z223.1 (latest edition), or in Canada, CAN/CGA B149.1 or .2

and all other applicable local codes and utility requirements.

This instruction covers the conversion of this unit when it is

equipped with a White-Rodgers gas valve. The installation

instruction supplied with the unit is to be used for all other

aspects of the installation.

IMPORTANT - These instructions are for the use of qualified

individuals specially trained, experienced and certified in the

installation of this type of equipment and related systems

components. Installation and service personnel are required

by some states to be licensed. Persons not qualified shall not

install this equipment nor interpret these instructions.

This is a safety alert symbol. When you see this sym-

bol on labels or in manuals, be alert to the potential

for personal injury.

Understand and pay particular attention to the signal words

DANGER, WARNING, or CAUTION.

DANGER indicates an imminently hazardous situation,

which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation,

which, if not avoided, could result in death or serious

injury.

CAUTION indicates a potentially hazardous situation, which,

if not avoided may result in minor or moderate injury. It is

also used to alert against unsafe practices and hazards

involving only property damage.

This conversion kit shall be installed by a qualified service agency in accordance with these instructions and all appli-

cable codes and requirements of the authority having jurisdiction. If the information in these instructions is not followed

exactly, a fire, an explosion or production of carbon monoxide may result causing property damage, personal injury or

loss of life. The qualified service agency is responsible for the proper installation of this kit. The installation is not

proper and complete until the operation of the converted appliance is checked as specified in these instructions sup-

plied with the kit.

The conversion of new certified central heating gas appliances must conform to directions outlined in this instruction.

Installation must be made in accordance with American National Standard National Fuel Gas Code, ANSI Z223.1-lat-

est edition, unless superseded by local codes. For Canadian installations, the conversion shall be carried out in accor-

dance with the requirements of the Provincial authorities having jurisdiction and in accordance with the CAN1-B149.1

and .2 installation codes.

The manufacturer accepts no responsibility for malfunctions due to improper conversions

Lo-NOx furnaces requiring propane (LP) gas must have the NOx screens removed prior to operation. Failure to do so may

result in operational problems and/or reduced heat exchanger life. Follow the instructions below for removal of the NOx

screens.

Improper installation, adjustment, service or mainte-

nance can cause injury or property damage; there-

fore, only a qualified installer or qualified service

personnel should perform this conversion.

Summary of content (8 pages)

PAGE 1
247585-UAI-A-0706 ACCESSORY KIT INSTALLATION INSTRUCTIONS 1NP0347 - PROPANE CONVERSION - INDUCED COMBUSTION FURNACES FOR USE IN THE FOLLOWING 90% MODELS: GF9S, GY9S, GM9S, PS9, FL9S, FC9S, PT9, FL9T, FC9T, GM9T, PV9, FL9V, FC9V, GM9V, XYF90 FOR USE IN THE FOLLOWING 80% MODELS: GY8S, GM8S, GR8S, PS8, FL8S, FC8S, PT8, FL8T, FC8T, GM8T, PV8, FL8V, FC8V, GM8V, LF80, LY8S, LM8S, LL8S, LC8S, LL8V, LC8V, LM8V, XYF80 This conversion kit shall be installed by a qualified service agency in accordance with these in
PAGE 2
47585-UAI-A-0706 CONTENTS OF KIT DESCRIPTION PART NUMBER Gas Line Pressure Switch 17471 Tapped Gas Pipe Nipple 18095 Propane Gas Orifice 18081 Wire Harness 20461 Installation Instructions 247585 Valve Conversion Kit 7614 (WR #92-0923) Packaging Kit (33 Cu In) 93689 Label, Bar Code 11931 Label, Conversion 255424 Label, Carton 255426 Label, Conversion Rating 255417 Plate QTY 1 1 7 1 1 1 1 1 1 1 1 An overpressure protection device, such as a pressure regulator, which conforms to the National Fuel Gas code,
PAGE 3
247585-UAI-A-0706 TESTS AND ADJUSTMENTS PROPANE AND HIGH ALTITUDE CONVERSION KITS It is very important to choose the correct kit and/or gas orifices for the altitude and the type of gas for which the furnace is being installed. Only use natural gas in furnaces designed for natural gas. Only use propane (LP) gas for furnaces that have been properly converted to use propane (LP) gas. Do not use this furnace with butane gas.
PAGE 4
247585-UAI-A-0706 ADJUSTMENT OF MANIFOLD GAS PRESSURE FOR 80% FURNACES Inlet and manifold gas pressure may be measured by connecting the “U” tube manometer to the gas valve with a piece of tubing. Follow the appropriate section in the instructions below. Refer to Figure 1 for a drawing of the locations of the pressure ports on the gas valve. Turn gas off at the ball valve or gas cock on gas supply line before the gas valve. Find the pressure ports on the gas valve marked Out P and In P. 1.
PAGE 5
247585-UAI-A-0706 6. An overpressure protection device, such as a pressure regulator, must be installed in the gas piping system upstream of the furnace and must act to limit the downstream pressure to the gas valve so it does not exceed 0.5 PSI (14” w.c.) (3.48 kPa). Pressures exceeding 0.5 PSI (14” w.c.) (3.
PAGE 6
247585-UAI-A-0706 In the USA use the following formula to calculate the furnace input. For propane (LP) gas multiply the heat content of the gas BTU/SCF or Default 2500 BTU/SCF (93.15 MJ/m3), times 1 cubic ft. (0.028 m) of gas measured at the gas meter, times a barometric pressure and temperature correction factor of 0.960; times 3600, then divided by the time (In seconds) it took to measure 1 cubic ft. (0.028 m) of gas from the gas meter.
PAGE 7
247585-UAI-A-0706 WITH BURNER BOX COVER IN PLACE WITH BURNER BOX COVER REMOVED BURNER BOX PRESSURE REFERENCE HOSE BURNER BOX PRESSURE REFERENCE HOSE (not used) TEE FITTING BURNER BOX WITH COVER REMOVED BURNER BOX WITH COVER OUTLET PRESSURE TAP GAS VALVE U-TUBE MANOMETER 6 5 4 3 2 1 0 1 2 3 4 5 6 3.5 IN WATER COLUMN GAS PRESSURE SHOWN U-TUBE MANOMETER 6 5 4 3 2 1 0 1 2 3 4 5 6 OUTLET PRESSURE TAP GAS VALVE 3.