14
INSTALLATION
Connecting to Gas Supply (Cont.) Checking Gas Connections
INSTALLATION
Continued
| CSA | |
PROPANE/LP | Shutoff Valve With 1/8" NPT Tap* | |
From External |
| |
Regulator |
| |
(11" W.C.** | Approved Flexible | |
to 14" W.C. | ||
Gas Hose (if allowed | ||
Pressure) | ||
by local codes) | ||
| ||
NATURAL |
| |
From Gas | 3" Minimum | |
Meter | ||
(5" W.C.** |
| |
to 10.5" W.C. |
| |
Pressure) | Gas Regulator | |
|
Tee Cap Pipe
Joint Nipple
Sediment Trap
Figure 17 - Gas Connection (Variable Manually-Controlled and Thermostat-Controlled Models Only)
CSA |
|
Shutoff Valve With 1/8" NPT Tap* | PROPANE/LP - |
| From External |
| Regulator |
Approved Flexible | (11" W.C.** |
Gas Hose (if allowed | to 14" W.C. |
by local codes) | Pressure) |
| NATURAL - |
3" Minimum | From Gas |
Meter | |
| (5" W.C.** |
| to 10.5" W.C. |
| Pressure) |
Gas Control | Pipe Cap | Tee | ||
Nipple | Joint |
| ||
|
| |||
|
|
|
|
|
|
|
|
|
|
Sediment Trap
Figure 18 - Gas Connection (Remote-Ready Models Only)
*Purchase the optional CSA
**Minimum inlet pressure for purpose of input adjustment.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once.
WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once.
CAUTION: Make sure external regulator has been installed between propane/LP supply and heater. See guidelines under Connecting to Gas Supply, page 13.
Pressure Testing gas Supply Piping system
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1.Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping sys- tem. Pressures in excess of 1/2 psig will damage heater regulator.
2.Cap off open end of gas pipe where equipment shutoff valve was connected.
3.Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas, or using compressed air.
4.Check all joints of gas supply piping system. Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.
5.Correct all leaks at once.
6.Reconnect heater and equipment shutoff valve to gas supply. Check reconnected fittings for leaks.
Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa)
1.Close equipment shutoff valve (see Figure 19, page 15).
2.Pressurize supply piping system by either opening propane/LP sup- ply tank valve for propane/LP gas or opening main gas valve lo- cated on or near gas meter for natural gas, or using compressed air.
3.Check all joints from gas meter to equipment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/LP (see Figures 20 and 21, page 15). Apply non- corrosive leak detection fluid to all joints. Bubbles forming show a leak.
4.Correct all leaks at once.
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