Form 44201440
26
Oct 2018
GAS PRESSURE TABLE
GAS TYPE
MANIFOLD PRESSURE
SUPPLY PRESSURE
High
Low (2-stage only)
Minimum*
Maximum
Natural Gas
6.0
” W.C.
2.8
” W.C.
7
” W.C.
14” W.C.
Propane Gas
11
.0” W.C.
5
.0” W.C.
11.5
” W.C.
14” W.C.
Minimum permissible gas supply pressure for purpose of input adjustment.
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 (See section 4).
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 90ºC shall be used.
Содержание SGL35-L7
Страница 36: ...Form 44201440 35 Oct 2018 ...
Страница 45: ......