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111826-05
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12
INSTALLATION
Continued
* Purchase the optional CSA design-certified equipment shutoff valve
from your dealer. See Accessories, page 27.
**Minimum inlet pressure for purpose of input adjustment.
Figure 13 - Gas Connection (Remote-Ready Models Only)
Gas Control
Pipe Cap Tee
Nipple Joint
3" Minimum
Sediment Trap
PROPANE/LP
- From External
Regulator
(11" W.C.**
to 14" W.C.
Pressure)
NATURAL
- From Gas
Meter
(5" W.C.**
to 10.5" W.C.
Pressure)
CSA Design-Certified Equipment
Shutoff Valve With 1/8" NPT Tap*
Approved Flexible
Gas Hose (if allowed
by local codes)
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 11.
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
system. Pressures in excess of 1/2 psig will damage heater
regulator.
CHECKING GAS CONNECTIONS
INSTALLATION
Connecting To Gas Supply (Cont.)
Checking Gas Connections
Figure 14 - Equipment Shutoff Valve
ON
POSITION
OFF
POSITION
GRH/OV 020MANUAL SHUT-OFF VALVE
Equipment
Shutoff
Valve
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 14).
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 equipment shutoff valve for
natural gas or propane/LP supply to equipment shutoff valve for
propane/LP (see Figure 15, page 13). 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 Figure 14).
2. Open main gas valve located on or near gas meter for natural
gas or open propane/LP supply tank valve.
3. Make sure control knob of heater is in the OFF position.
4. Check all joints from equipment shutoff valve to gas control
(see Figures 15 and 16 page 13). Apply noncorrosive leak
detection fluid to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, pages 14 through 16).
Check all other internal joints for leaks.
7. Turn off heater.
(OPEN)
(CLOSE)