32
•
MN-35947
•
Rev 22
•
10/22
•
Combitherm® CT PROformance™ and CT Classic Series Installation Manual
Installation
Remove any tape or
compound residue
on all external
thread connections
before proceeding.
Use an approved gas
pipe sealant at all
external threaded
connections, Gas
piping used on gas
connections must avoid sharp bends that may restrict
the fl ow of gas to the appliance. If the connected
pressure exceeds 14.0" W.C. (3.5 kPa), a step-down
regulator is required to be supplied by the owner/
operator.
Close the individual manual shut-off valve to
isolate the
appliance
from the gas supply piping system during any
pressure testing at test pressures equal to or less than
1/2 psig (3.4 kPa). The appliance and individual shut-off
valve
must be disconnected
from the gas supply piping
system during any pressure testing at pressures in
excess of 1/2 psig (3.4 kPa).
In the U.S.A., installation must conform to local codes
or, in the absence of local codes, with the current
edition of the
National Fuel Gas Code,
NFPA-54 and
ANSI Z83.11a CSA 1.8a 2004 (or latest edition). In
Canada, installation must be in accordance with local
codes, CAN/CGA-B149.1,
Installation for Natural Gas
Burning Appliances and Equipment
(latest edition)
or CAN/CGAB149.2
Installation for Propane Burning
Appliances and Equipment
(latest edition). In Europe,
installation must be in accordance with European
Standard EN203.
The inlet supply line must be properly sized to
accommodate all individual appliances simultaneously
used on the same line but must never be smaller than
3/4" NPT.
GAS INTAKE
A-G Installation elbow
B Ball Valve
C-D Three-piece union fitting
(minimum 1 per installation)
E-F End connector for the flexible tube
H Marking line
W A R N I N G
To prevent SERIOUS INJURY, DEATH, or
PROPERTY DAMAGE:
Installation, air adjustment and/or service
work must be in accordance with all local
codes and must be performed by a trained
service technician qualified to work on
gas appliances.
WARNING
To prevent personal injury, death or
property damage:
Do not
store or use gasoline or other
fl
ammable vapors or liquids in the vicinity
of this or any other appliance.
W A R N I N G
To prevent SERIOUS INJURY, DEATH or
PROPERTY DAMAGE:
DO NOT spray aerosols in the vicinity
of this appliance when in operation.
CAUTION
To prevent
INJURY
or
PROPERTY DAMAGE
,
make certain the area around the appliance
is kept clear of combustible items.
GAS SUPPLY AND INSTALLATION
