INSTALLATION
Continued
CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings.
Propane/LP |
| |
From External Regulator |
| |
(11" W.C.** to 14" W.C. | CSA Design- | |
Pressure) | ||
Natural | Certified Equipment | |
From Gas Meter | Shutoff Valve With | |
(5" W.C.** to | 1/8" NPT Tap* | |
10.5" W.C. |
| |
Pressure) | Gas | |
|
| Regulator |
| 3" Minimum | |
Tee | Pipe Cap | Approved Flexible |
Gas Hose (if allowed | ||
Joint | Nipple | by local codes) |
Sediment Trap
Figure 15 - Gas Connection
*Purchase the optional CSA
** Minimum inlet pressure for purpose of input adjustment.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.
WARNING:Neveruseanopen flame to check for a leak. Apply a noncorrosive leak detection fluid toalljoints.Bubblesformingshow a leak. Correct all leaks at once.
CAUTION: Make sure external regulator has been installed between propane/LP supply and heater.SeeguidelinesunderConnecting 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 equip- ment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator.
2.Cap off open end of gas pipe where equip- ment shutoff valve was connected.
3.Pressurize supply piping 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 a 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 Fig- ure 16).
2.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.
3.Check all joints from gas meter to equip- ment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/LP (see Figures 17 and
18, page 16). Apply noncorrosive leak detection fluid to all joints. Bubbles forming show a leak.
4.Correct all leaks at once.
Pressure Testing Heater Gas Connections
1.Open equipment shutoff valve (see Fig- ure 16).
Equipment 
Open
Shutoff
Valve
Closed
Figure 16 - Equipment Shutoff Valve
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