Installation and Operation Manual

Form #43219020
Sept 2012
GAS PRESSURE TABLE
HEATER MODEL
GAS
TYPE
MANIFOLD
PRESSURE
SUPPLY PRESSURE
Minimum
Maximum
SG (3, 4, 6, 8, 10, 12, 14, 15)
Natural
6” W.C.
7” W.C.
14” W.C.
SG (3, 6, 10, 13)
Propane
10” W.C.
11” W.C.
14” W.C.
 Minimum permissible gas supply pressure for purpose of input adjustment.
10) ELECTRICAL CONNECTIONS
1. All electric wiring shall conform to the latest edition of the National Electrical code (ANSI/NFPA No. 70), or
the code legally authorized in the locality where the installation is made.
2. The unit must be electrically grounded in accordance with the National Electrical code (ANSI/NFPA No. 70-
latest edition). In Canada, refer to current standard C22.1 Canadian Electrical Code Part 1.
3. The wiring providing power to the heater shall be connected to a permanently live electrical circuit, one that is
not controlled by a light switch.
4. The power supply to the unit should be protected with a fused disconnect switch or circuit breaker. A service
switch, as required by local codes, shall be located in the vicinity of the heater (check local codes for
allowable distances) and should be identified as Heater Service Switch. All electrical wiring must be located
in accordance with the required Clearances to Combustibles below the heater as listed on the nameplate on
the heater.
5. When connecting the supply circuit to the heater, wiring material having a minimum size of 14 AWG and a
temperature rating of at least 90˚C shall be used.
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