NG to LP Conversion Guide

ManualsBrandsReznor ManualsHeating SuppliesPower Vented Gas Fired Unit Heater - 120,000 BTU

Form CP-UD-GC, P/N 197209R11, page 1

Gas Conversion Kit Instructions

Form CP-UD-GC (Version A.2)

Obsoletes CP-UD-GC (Version A.1)



All gas conversion must be done by a qualied service person in accordance with

these instructions and in compliance with all codes and requirements. In Canada, gas

conversion shall be carried out in accordance with the requirements of the Provincial

Authorities having jurisdiction and in accordance with the requirements of the CAN/

CGA-B149.1 and .2 installation code.

FOR YOUR SAFETY

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone

in your building.

• Leave the building immediately.

• Immediately call your gas supplier from a phone remote

from the building. Follow the gas supplier’s instructions.

• Ifyoucannotreachyourgassupplier,callthere

department.

— Installationandservicemustbeperformedbyaqualied

installer, service agency, or the gas supplier.

Do not store or use gasoline or other ammable vapors and

liquids in the vicinity of this or any other appliance.

Applies to: Model UDAP, UDAS, UDBP,

and UDBS Unit Heaters

General and

Warnings

WARNING

The conversion kit is to be selected and installed by a qualied service person

in accordance with these instructions and in compliance with all codes and

requirements of authorities having jurisdiction. Failure to follow instructions

couldresultindeath,seriousinjuryand/orpropertydamage.Thequaliedagency

performing this work assumes responsibility for this conversion.

WARNING

Improper installation, adjustment, alteration, service,

or maintenance can cause property damage, injury, or

death. Read the installation, operation and maintenance

instructions thoroughly before installing or servicing this

equipment.

HAZARD INTENSITY LEVELS

1. DANGER: Failure to comply will result in severe personal injury or death

and/or property damage.

2. WARNING: Failure to comply could result in severe personal injury or

death and/or property damage.

3. CAUTION: Failure to comply could result in minor personal injury and/or

property damage.

Hazard Intensity of

Warnings in this

Manual

Summary of content (12 pages)

PAGE 1
Form CP-UD-GC (Version A.2) Obsoletes CP-UD-GC (Version A.1) Gas Conversion Kit Instructions Applies to: Model UDAP, UDAS, UDBP, and UDBS Unit Heaters General and Warnings Hazard Intensity of Warnings in this Manual All gas conversion must be done by a qualified service person in accordance with these instructions and in compliance with all codes and requirements.
PAGE 2
General and Warnings (cont’d) DANGER The gas burner in this gas-fired equipment is designed to provide safe complete combustion. However, if the installation does not permit the burner to receive the proper supply of combustion air, complete combustion may not occur. The result is incomplete combustion which produces carbon monoxide, a poisonous gas that can cause death.
PAGE 3
FIGURE 1 - Gas Valve and Burner Orifice Locations (Fan model is illustrated; gas valve and orifice locations are the same on blower models.
PAGE 4
Instructions (cont’d) FIGURE 2 1) Location of the Burner Orifice on all Models and Sizes 2) Location of the Air Restrictor Plate on UDAP, UDAS, UDBP, and UDBS 30, 45, 60, 75, 100, and 150 and UDBP and UDBS 125 when used with Propane only • Air restrictor plate must be added when converting models and sizes listed to propane • Air restrictor plate must be removed when converting to natural gas.
PAGE 5
Instructions for Changing the Pressure Switch 1. In the control compartment, locate the pressure switch. 2. Mark and disconnect the two wires attached to the pressure switch. 3. Disconnect the sensing tube(s) from the pressure switch. 4. Locate the two screws holding the switch mounting bracket. Remove the screws (save screws) and the pressure switch. 5. Using the same screws, install the correct pressure switch. Attach the sensing tube(s) and wires.
PAGE 6
FIGURE 4 - Top View of Valves identifying Pressure Taps and Adjustment Screw Location Two-Stage Valve Single-Stage Adjust Outlet 1/8” Outlet Adjust Low Valve Pressure Pressure Tap Adjust High Fire Outlet (two styles) Fire Outlet Pressure Pressure Inlet Pressure Tap Adjust Outlet Pressure 1/8” Outlet Pressure Tap Inlet Pressure Tap Inlet Pressure Tap 1/8” Outlet Pressure Tap 4) Measuring Single Stage or Two Stage High Fire - Turn the knob or switch on the top of the valve to “ON”.
PAGE 7
De-Coding the Heater Serial Number The identifying model and serial number can be found on the heater rating plate. When converting fuels, it is necessary that you have the complete heater model and serial number. See the example below to determine the serial number valve code. The rating plate identifies original equipment only so also compare the label on the gas valve with the description listed. BLJ Serial No.
PAGE 8
Natural TO Propane Kits for Models UDAP UDAS, UDBP, and UDBS (cont’d) For information on decoding the serial number, see page 7. Natural TO Propane Kit, P/N 269837 Applies to: Models UDAP / UDAS / UDBP / UDBS Sizes 100 and 125 Equipped with any of the following valves: Serial No. Code Valve Manufacturer’s No.
PAGE 9
Propane TO Natural Conversion Kits for Models UDAP, UDAS, UDBP, and UDBS For information on decoding the serial number, see page 7. Propane TO Natural Kit, P/N 269851 Propane TO Natural Kit, P/N 269852 Models UDAP / UDAS / UDBP / UDBS Sizes 30 and 45 Applies to: Applies to: Equipped with any of the following valves: Serial No. Code Valve Manufacturer’s No.
PAGE 10
Propane TO Natural Kits for Models UDAP, UDAS, UDBP, and UDBS (cont’d) For information on decoding the serial number, see page 7. Propane TO Natural Kit, P/N 269855 Applies to: Models UDAP / UDAS / UDBP / UDBS Sizes 200, 225, and 250 Equipped with any of the following valves: Serial No. Code Valve Manufacturer’s No.
PAGE 11
TABLE 3A Inputs and Capacities by Altitude for Models UDAP and UDAS BTUH Inputs and Capacities by Altitude in the UNITED STATES for Model UDAP and Model UDAS ALTITUDE Normal Input Thermal Thermal Thermal Thermal Minimum Normal Minimum Normal Minimum Normal Minimum Output Output Output Output Input Input Input Input Input Input Input Capacity Capacity Capacity Capacity Feet Meters 0-2000 0-610 30000 24600 Size 30 30000 45000 37350 Size 45 45000 60000 49800 Size 60 42000 75000 62250 Size 75
PAGE 12
TABLE 3B Inputs and Capacities by Altitude for Models UDBP and UDBS BTUH Inputs and Capacities by Altitude in the UNITED STATES for Models UDBP and UDBS Normal Input ALTITUDE Thermal Minimum Output Input Capacity Normal Input Size 30 Thermal Minimum Output Input Capacity Normal Input Size 45 Thermal Minimum Output Input Capacity Normal Input Feet Meters 0-2000 0-610 30000 24600 30000 45000 36900 45000 60000 49200 42000 75000 61500 52500 2001-3000 611-915 28200 23124 28200 423