U.S.: Consult the current National Fuel Gas Code, ANSI Z223.1/NFPA 54.
Canada: CSA - B149.1 installation code.
Test for leaks. Use a 50/50 solution of liquid soap and water to test for leaks at gas fittings and joints. Apply water/soap solution with brush only - do not over apply. NEVER test with an open flame.
The gas control is equipped with a captured screw type pressure test point, therefore it is not necessary to pro- vide a 1/8" test point up stream of the control.
When using copper or flex connector use only ap- proved fittings. Always provide a union so that gas line can be easily disconnected for burner or fan servic- ing. See gas specification for pressure details and ratings. NOTE: If flex connector is used, it must be kept inside of the appliance. (Fig. 8)
1/2" Gas Supply
1/2" x 3/8"
3/8" Nipple
3/8" Union
3/8"
Nipple
FP598
Fig. 8 Typical gas supply installation.
Remote Wall Switch
1.Thread wire through the electrical knockout located on side of unit. Do not cut wire or insulation on metal edges. Ensure that wire is protected. Run the other end to a conveniently located wall receptacle box.
2.Attach wire to switch and install switch into receptacle box. Attach cover plate to switch.
3.Connect wiring to gas valve. Refer to Figure 9 or 10.
CAUTION: Do not wire millivolt remote wall switch for gas appliance to a 120v power supply.
For lighting instructions, see Page 14.
NVB Series
R Models
Pilot
Thermodisk
| TPTH | Valve |
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On/Off | TP |
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Switch |
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| TH | HV105 |
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Fig. 9 Remote switch wiring for R Models.
Honeywell Ignition
WHITE
PILOT
| HONEYWELL S8600 B IGNITION MODULE | BLACK | |||||||||||
MV MVPV PV | GND |
| 24V |
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| Thermodisk | ||
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| NOVA SIT 822 VALVE | BLACK |
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120 VAC RTN |
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GREEN |
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FP670
Fig. 10 Remote switch wiring for E Models
7412950 | 9 |
