UNVENTED
INSTALLATION
CONNECTING TO GAS SUPPLY
WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes.
CAUTION: Never connect heater directly to the propane/LP supply. This heater requires an
Propane/LP |
| External Regulator | Installation must include a manual shutoff |
Supply Tank |
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| valve, union, and plugged 1/8" NPT tap. |
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| Locate NPT tap within reach for test gauge |
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| hook up. NPT tap must be upstream from |
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| heater (see Figure 14). |
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Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.
CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.
external regulator (not supplied). Install the external regulator be- tween the heater and propane/LP supply.
Installation Items Needed
Before installing heater, make sure you have the items listed below.
•external regulator (supplied by installer)
•piping (check local codes)
•sealant (resistant to propane/ LP gas)
•manual shutoff valve *
•test gauge connection *
•sediment trap
•tee joint
•pipe wrench
*An A.G.A.
The installer must supply an external regu- lator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11 and 14 inches of water. If you do not reduce incom- ing gas pressure, heater regulator damage could occur. Install external regulator with the vent pointing down as shown in Figure
13.Pointing the vent down protects it from freezing rain or sleet.
Vent Pointing Down
Figure 13 - External Regulator With Vent Pointing Down
WARNING: Never connect heater to private
CAUTION: Use only new, black iron or steel pipe. Inter-
From External Regulator (11" W.C.** to
14" W.C. Pressure)
Tee Joint |
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Pipe | 3" Minimum |
Nipple | |
Cap |
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Sediment Trap |
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Install sediment trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach for cleaning. Locate sedi- ment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.
CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.
A.G.A.
Manual Shutoff Valve With
1/8" NPT Tap*
Approved Flexible Gas Hose (if allowed by local codes)
Gas
Regulator
Figure 14 - Gas Connection
*Purchase the optional A.G.A.
**Minimum inlet pressure for purpose of input adjustment.
12 | 103425 |