Unitary products group GF8 Installationshandbuch PDF herunterladen (Seite 13)

66832-UIM-D-1205

Unitary Products Group 13

GAS ORIFICE CONVERSION FOR PROPANE (LP)

This furnace is constructed at the factory for natural gas-fired operation,

but may be converted to operate on propane (LP) gas by using a fac-

tory-supplied LP conversion kit. Follow the instructions supplied with

the LP kit. Refer to Table 7 or the instructions in the propane (LP) con-

version kit for the proper gas orifice size.

HIGH ALTITUDE GAS ORIFICE CONVERSION

This furnace is constructed at the factory for natural gas-fired operation

at 0 – 2,000 ft. (0 m – 610 m) above sea level.

The gas orifices on this furnace must be changed in order to maintain

proper and safe operation, when the furnace is installed in a location

where the altitude is greater than 2,000 ft. (610 m) above sea level on

natural gas or the altitude is greater than 4,000 ft. (1219 m) above sea

level on propane (LP) gas. Refer to Table 7 for the proper gas orifice

size.

The unit may also be converted for altitudes up to 10,000 ft. (3048 m)

on natural and propane (LP) gas with additional derate as shown in

Table 7 or refer to ANSI Z223.1 NFPA 54 National Fuel Gas Code or in

Canada CAN/CGA-B149.1-00 Natural Gas and Propane Installation

Code.

SECTION V: ELECTRICAL POWER

Electrical Power Connections

Field wiring to the unit must be grounded. Electric wires that are field

installed shall conform to the temperature limitation for 63°F (35°C) rise

wire when installed in accordance with instructions. Refer to Table 8 in

these instructions for specific furnace electrical data.

Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.

Wire size and over current protection must comply with the National Electrical Code (NFPA-70-latest edition) and all local codes.

The furnace shall be installed so that the electrical components are protected from water.

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 pro-

pane (LP) gas. Do not use this furnace with butane gas.

Incorrect gas orifices or a furnace that has been improperly converted will create an extremely dangerous condition resulting in premature heat

exchanger failure, excessive sooting, high levels of carbon monoxide, personal injury, property damage, a fire hazard and/or death.

High altitude and propane (LP) conversions are required in order for the appliance to satisfactory meet the application.

An authorized distributor or dealer must make all gas conversions.

In Canada, a certified conversion station or other qualified agency, using factory specified and/or approved parts, must perform the conversion.

The installer must take every precaution to insure that the furnace has been converted to the proper gas orifice size when the furnace is installed.

Do not attempt to drill out any orifices to obtain the proper orifice size. Drilling out a gas orifice will cause misalignment of the burner flames,

causing premature heat exchanger burnout, high levels of carbon monoxide, excessive sooting, a fire hazard, personal injury, property damage

and/or death.

TABLE 7:

High Altitude Conversion

Type

Of Gas

Orifice at

Sea Level

2,000 ft.

(610 m)

3,000 ft.

(914 m)

4,000 ft.

(1219 m)

5,000 ft.

(1524 m)

6,000 ft.

(1829 m)

7,000 ft.

(2134 m)

8,000 ft.

(2438 m)

9,000 ft.

(2743 m)

10,000 ft.

(3048 m)

Natural #42 #42 #43 #43 #43 #44 #44 #45 #46 #47

Propane #54 #54 #55 #55 #55 #55 #55 #56 #56 #56

Use copper conductors only.

TABLE 8: Ratings & Physical / Electrical Data - Upflow Models

Input Output Nominal Cabinet Width Air Temp. Rise

MBH kW MBH kW CFM cmm In. cm AFUE °F °C

50 14.7 40 11.7 1200 34.0 17-1/2 44.45 80.0 30-60 16.7-33.3

75 22.0 60 17.6 1200 34.0 17-1/2 44.45 80.0 35-65 19.4-36.1

75 22.0 60 17.6 1600 45.3 21 53.34 80.0 30-60 16.7-33.3

100 29.3 80 23.4 1600 45.3 21 53.34 80.0 40-70 22.2-38.9

100 29.3 80 23.4 2000 56.6 24 1/2 62.23 80.0 35-65 19.4-36.1

125 36.6 100 29.3 2000 56.6 24 1/2 62.23 80.0 40-70 22.2-38.9

150 44.0 120 35.2 2000 56.6 24 1/2 62.23 80.0 40-70 22.2-38.9

Input

Max. Outlet

Air Temp

Blower

Size

Total

Unit

Max Over-current

Size (awg) @ 75 ft.

Min.

Wire

Operation

WGT.

Operation

WGT.

MBH kW °F °C Hp Amps In. cm amps protect one way LBS Kg

50 14.7 160 71.1 1/3 6.2 10 x 8 25.4 x 20.3 6.7 15 14 112 50.8

75 22.0 165 73.9 1/3 6.2 10 x 8 25.4 x 20.3 6.7 15 14 118 53.5

75 22.0 160 71.1 1/2 6.2 10 x 10 25.4 x 25.4 8.5 15 14 129 58.5

100 29.3 170 76.7 1/2 7.0 10 x 10 25.4 x 25.4 8.5 15 14 135 61.2

100 29.3 165 73.9 3/4 12.2 (2)10 x 6 (2) 25.4 x 15.2 10.3 15 14 149 67.6

125 36.6 170 76.7 3/4 12.2 (2)10 x 6 (2) 25.4 x 15.2 10.3 15 14 155 70.3

150 44.0 170 76.7 3/4 12.2 (2)10 x 6 (2) 25.4 x 15.2 10.3 15 14 165 74.8

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 27 28

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