66
During pressure testing note the following:
1. The unit and its individual shut-off valves must be disconnected from the gas
supply piping system during any pressure testing of that system when test
pressures exceed
1
⁄
2
psig (3.45kPa). Turn OFF main gas shut-off valve or main
gas supply line.
2. The unit must be isolated from the gas supply piping system by closing its
individual manual shut-off valves during any pressure testing of the gas supply
piping system at test pressure equal to or less than
1
⁄
2
psig (3.45kPa).
3. If incoming pressure is over 14 in. water column (35 mb) a separate regulator
must be installed ahead of the manual gas shut-off valve.
To prevent damage to the control valve regulator, the first time the gas valve knob is
turned to the ON position, it is very important to turn the knob very slowly.
NOTE
After turning on the gas, the manual shut-off valve must remain open, except
during pressure testing as outlined above, or when necessary during service
maintenance.
■
Incoming pressure reading can be taken by installing a gas pressure gauge on
the front of the unit’s main gas valves test port. This should be done with all
gas appliances in operation on the same gas supply line. Should the manifold
pressure drop below the desired level, consult your local gas utility service.
Gas Hook-up
INSTALLATION
continued
RIGHT
A minimum pull of appliance
away from wall is acceptable in
order to disconnect hook-up.
WRONG
Maximum pull prior to disconnect
will result in kinked ends and reduce
hose and connector life.