Reflect-O-Ray
®
EDS-4DI & EHS-4DI
Installation, Operation & Service
Combustion Research Corporation
Page 19
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.
•
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
.
Burner Assembly End View
Flexible Gas
Connector
Burner Assembl y Side View
12"
(30 cm)
2" (5 cm)
Burner Movement
INCORRECT POSITIONS
Hold gas nipple secu rely
with pipe wrench whe n
connecting gas connector
and fittings
NOTE: For clarity, modulating
Air Damper is not shown.
Gas Connector Description
Used With Inputs of
P/N
½” Flexible Stainless Steel Gas Connector (US Models) – 36” L
40K through 150K
0317.00
¾” Flexible Stainless Steel Gas Connector (US Models) – 36” L
155K through 250K
0417.00
½” Flexible Type 1 Rubber Hose (Canada Only) – 36” L
40K through 175K
Supplied by Installer
¾” Flexible Type 1 Rubber Hose (Canada Only) – 36” L
180K through 250K
Supplied by Installer
!