installation instructions

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TABLE 3

METER TIME IN MINUTES AND SECONDS FOR NORMAL

INPUT RATING OF FURNACES EQUIPPED FOR NATURAL

OR LP GAS

INPUT

BTU/HR

40,000

60,000

80,000

100,000

METER

SIZE

CU. FT.

ONE

TEN

ONE

TEN

ONE

TEN

ONE

TEN

HEATING VALUE OF GAS BTU PER CU. FT.

900 1000 1040 1100 2500

MIN. SEC. MIN. SEC. MIN. SEC. MIN. SEC. MIN. SEC.

1 21 1 30 1 34 1 39 3 45

13 30 15 0 15 36 16 30 37 30

0 54 1 0 1 3 1 6 2 30

9 0 10 0 10 24 11 0 25 0

0 41 0 45 0 47 0 50 1 53

6 45 7 30 7 48 8 15 18 45

0 33 0 36 0 38 0 40 1 30

5 24 6 0 6 15 6 36 15 0

Start the furnace and measure the time required to burn one cubic foot of gas. Prior to checking the furnace input, make certain that all other gas appliances are shut off, with the exception of pilot burners. Time the meter with only the furnace in operation.

IMPORTANT NOTE FOR ALTITUDES ABOVE 2,000 FEET (610 METERS):

The main burner orifices in your furnace and in these kits are sized for the nameplate input and intended for installations at elevations up to 2,000 feet in the USA or Canada, or for elevations of 2,000 - 4,500 feet (610 -1,373 meters) in Canada if the unit has been derated at the factory. For elevations above 2,000 feet (610 meters) IN THE USA ONLY (see

ANSI-Z223.1), the burner orifices must be sized to reduce the input 4% for each 1,000 feet (305 meters) above sea level.

NOTICE: DERATING OF THE HEATING INPUT FOR HIGH ALTITUDE IN THE FIELD

IS UNLAWFUL IN CANADA (REFER TO CAN/CGA 2.17). UNITS INSTALLED IN

ALTITUDES GREATER THAN 2,000 FEET (610 METERS) MUST BE SHIPPED FROM

THE FACTORY OR FROM A FACTORY AUTHORIZED CONVERSION STATION

WITH THE HEATING INPUT DERATED BY 10% SO AS TO OPERATE PROPERLY IN

ALTITUDES FROM 2,000 - 4,500 FEET (610 - 1,373 METERS).

E. DEFROST RUNOFF

The outdoor coil during heating operation will sweat or run water off. The outdoor coil will also run water off during the defrost cycle. See section VI Installation for mounting precautions.

F. CONDENSATE DRAIN

The evaporator coil condensate drain ends with a threaded 3/4” nominal PVC stub. A trap is built in for proper condensate drainage and to prevent debris from being drawn into the unit. Do not connect the drain to a closed sewer line. Connection to a vented sewer line is allowed. It is recommended that a PVC cement not be used so that the drain line can be easily cleaned in the future.

IMPORTANT: DO NOT INSTALL AN EXTERNAL TRAP. DOING SO CAN CAUSE

IMPROPER DRAINAGE OF THE CONDENSATE AND RESULT IN FLOODING WITH-

IN THE UNIT.

VIII.WIRING

A. POWER SUPPLY

!

WARNING

TURN OFF THE MAIN ELECTRICAL POWER AT THE BRANCH CIRCUIT DIS-

CONNECT CLOSEST TO THE UNIT BEFORE ATTEMPTING ANY WIRING. FAIL-

URE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL

INJURY OR DEATH.

1. All wiring should be made in accordance with the National Electrical Code.

Consult the local power company to determine the availability of sufficient power to operate the unit. Check the voltage at power supply to make sure it corresponds to the unit’s RATED VOLTAGE REQUIREMENT. Install a branch circuit disconnect near the rooftop, in accordance with the N.E.C., C.E.C. or local codes.

2. It is important that proper electrical power is available at the unit. Voltage should not vary more than 10% from that stamped on the unit nameplate. On three phase units, phases must be balanced within 3%.

3. For branch circuit wiring (main power supply to unit disconnect), the minimum wire size for the length of run can be determined from Table 4 using the circuit ampacity found on the unit rating plate. Use the smallest wire size allowable in Table 4 from the unit disconnect to unit. The disconnect must be in sight and readily accessible of the unit.

TABLE 4

BRANCH CIRCUIT COPPER WIRE SIZE

(BASED ON 1% VOLTAGE DROP)*

SUPPLY WIRE

LENGTH-FEET

200 6

150 8

4 4 4

6 6 4

100 10 8 8 6

50 14 12 10 10

3

4

6

8

3

4

6

8

2

3

4

6

2

3

4

6

15 20 25 30 35 40 45 50

BRANCH CIRCUIT AMPACITY

*Taken from National Electric Code

NOTES:

1. Wire size based on 60°C rated wire insulation and 30°C Ambient Temp. (86°F).

2. For more than 3 conductors in a raceway or cable, see the N.E.C. for derating the ampacity of each conductor.

When installed, the unit must be electrically grounded in accordance with local codes or, in the absence of local codes, with the National Electrical Code,

ANSI/NFPA 70,

if an external electrical source is utilized.

IMPORTANT: THIS UNIT IS APPROVED FOR USE WITH COPPER CONDUCTORS

ONLY CONNECTED TO UNIT CONTACTOR.

WARRANTY MAY BE JEOPARDIZED IF ALUMINUM WIRE IS CONNECTED TO

UNIT CONTACTOR.

Special instructions apply for power wiring with aluminum conductors: Warranty is void if connections are not made per instructions.

Attach a length (6” or more) of recommended size copper wire to the unit contactor terminals L1 and L3 for single phase, L1, L2 and L3 for three phase.

Select the equivalent aluminum wire size from the tabulation below:

Splice copper wire pigtails to aluminum wire with U.L. recognized connectors for copperaluminum splices. Please exercise the following instructions very carefully to obtain a positive and lasting connection:

1. Strip insulation from aluminum conductor.

2. Coat the stripped end of the aluminum wire with the recommended inhibitor, and wire brush the aluminum surface through inhibitor. INHIBITORS: Brundy-Pentex “A”;

Alcoa-No. 2EJC; T & B-KPOR Shield.

3. Clean and recoat aluminum conductor with inhibitor.

4. Make the splice using the above listed wire nuts or split bolt connectors.

5. Coat the entire connection with inhibitor and wrap with electrical insulating tape.

TABLE 5

AWG Copper AWG Aluminum

Wire Size Wire Size

#12

#10

# 8

# 6

# 4

#10

# 8

# 6

# 4

# 2

Connector Type and Size

(or equivalent)

T & B Wire Nut

T & B Wire Nut

Sherman Split Bolt

Sherman Split Bolt

Sherman Split Bolt

PT2

PT3

TSP6

TSP4

TSP2

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