INSTALLATION
Continued
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure
15, page 13).
2. For natural gas open, main gas valve
located on or near gas meter. For propane
/LP gas 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 thermostat gas valve (see Figure
16 or 17). Apply a noncorrosive leak de-
tection fl uid to all joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater, page
17). Check all other internal joints for
leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 18).
8. Replace Shell Front.
CONNECTING TO ELECTRICAL
SUPPLY (Only for BWH20NLTB and
BWH30NLTB)
EXTENSION CORD
Use extension cord if needed. The cord must
have a three-prong, grounding plug and a
three-hole receptacle. Make sure cord is in
good shape. It must be heavy enough to carry
the current needed. An undersized cord will
cause a drop in line voltage. This will result
in loss of power and overheating. Use a No.
16 AWG cord for lengths less than 50 feet
(15. 4 m).
14
Figure 16 - Checking Gas Joints for
Natural Gas
Figure 17 - Checking Gas Joints for
Propane/LP Gas
Figure 18 - Grounding Plug
WARNING: Fan accessory must
be grounded. Fan comes with a three-
prong, grounding plug as shown in
Figure 18. The plug is your protection
against electrical shock. Plug it into a
standard, three-hole,
grounded, outlet. If cord needs
replacing, use only a cord with a three-
prong, grounding plug.
CAUTION: Label all wires prior
to disconnection when servicing
controls. Wiring errors can cause
improper and dangerous operation .
CAUTION: Verify proper opera-
tion after servicing.
