User Manual

Serengeti-IR
™
Installation, Operation & Service
Page 12 Combustion Research Corporation
FLEXIBLE GAS CONNECTOR
WARNING
FIRE OR EXPLOSION HAZARD
IMPROPER INSTALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE
CAN CAUSE DEATH, SEVERE INJURY
AND/OR PROPERTY DAMAGE.
There Is expansion of the radiant pipe with each firing
cycle and this will cause the burner to move with
respect to the gas line. This can cause an unsafe
condition if the gas pipe connection is not done in
strict accordance to the instructions.
United States - Use only the stainless steel flexible
gas connector as supplied by Combustion Research
Corporation.
Canada – Use approved gas connector as outlined in
B149 Codes; Type 1, minimum 36” long. See chart
below for sizing. This hose is to be supplied by the
Installer contractor.
Install the flex connector as shown in the diagram below.
This gas connector accommodates the normal expansion
of the system. Before connecting the gas connector verify
that all high-pressure testing has been completed.
The gas connector shut off valve must be parallel to the
gas inlet on the burner. A 2” (5cm) cold displacement for
initial setup is shown. This displacement may reduce
when the system is fired.
 Do not high pressure test the gas piping with the
burner connected. Failure to follow these instructions
can result in property damage.
 Check the pipe and tubing ends for leaks before
placing heating equipment into service. When
checking for gas leaks, use a soap and water solution,
never use an open flame. The loop of the gas flex
MUST BE parallel or in line with the gas inlet pipe on
the burner.
 The displacement as shown is for cold, non-firing
condition. This displacement will vary as system heats
up.
 Install drip leg in accordance with all applicable codes.
 EXCESSIVE TORQUE ON THE BURNER GAS INLET
MANIFOLD MAY CAUSE DAMAGE. ALWAYS USE
TWO (2) WRENCHES WHEN MAKING PIPING
CONNECTIONS TO THE BURNER.
 DO NOT APPLY PIPE DOPE TO FLARE NUT
FITTINGS OF THE FLEXIBLE GAS CONNECTOR.
Gas Connector Description Used With Inputs of P/N
½” Flexible Stainless Steel Gas Connector (US Models) – 36” L 40K through 60K 0317.01
½” Flexible Type 1 Rubber Hose (Canada Only) – 36” L 40K through 60K Supplied by Installer
INCORRECT POSITIONS
IMPORTANT: Use two wrenches when connecting gas connector and fittings.
Gas Connecto
r
Shut-Off Valve
Shut-Off Valve must be parallel to the gas inlet on the burner. A 2” (5 cm)
cold displacement for initial setup is shown. This displacement may
reduce when the s
y
stem is fired.
3” (8 cm) – Cold Displacement
12”
(30 cm)
Flexible Gas Connector – Form connector into a lazy
“U” bend as shown. DO NOT make sharp bends.
!
BURNER GAS CONNECTION