Mendota X-62, Инструкция по установке и эксплуатации

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GAS SUPPLY REQUIREMENTS
CORRECT GAS PRESSURE AND PROPER GAS SUPPLY LINE SIZING ARE CRITICAL TO THE SUCCESSFUL
PERFORMANCE OF YOUR X-62 GAS LOG INSERT. BE SURE THAT THE GAS SUPPLIER OR PLUMBER CHECKS FOR
CORRECT GAS PRESSURE AND GAS LINE SIZING WHEN INSTALLING THE APPLIANCE.
GAS SUPPLY PIPING MUST INCLUDE A DRIP LEG TO ELIMINATE THE POSSIBILITY OF CONTAMINANTS ENTERING THE
GAS TRAIN. MANY LOCAL CODES ALSO REQUIRE A SHUT OFF VALVE ON THE INCOMING GAS LINE. ADHERE
STRICTLY TO LOCAL AND NATIONAL CODES.
IF GAS SUPPLY PRESSURES EXCEED ½ PSIG [3.5KPA], THE APPLIANCE MUST BE ISOLATED FROM ITS SUPPLY WITH
AN APPROVED MANUAL SHUT-OFF VALVE. THIS MANUAL SHUT-OFF VALVE MUST BE CLOSED DURING ANY SUPPLY
LINE PRESSURE TESTING.
GAS SUPPLY LINE SIZING
The X-62 comes equipped with a 3/8" N.P.T. [1.0 cm] inlet on the main gas valve.
A gas line of sufficient size to deliver 63,000 BTUH to the unit at the normal inlet pressure must be run from the
supply regulator to the appliance. Refer to the following table and to local codes to determine the correct pipe
diameter.
PIPE LENGTH SCHEDULE 40 PIPE (INSIDE DIA.) TUBING, TYPE L (OUTSIDE DIA.)
FEET
( Meters )
NAT.
IN ( CM )
L.P.
IN ( CM )
NAT.
IN ( CM )
L.P.
IN ( CM )
0 - 10 (0 - 3.1) 1/2 (1.3) 3/8 (1.0) 1/2 (1.3) 3/8 (1.0)
10 - 40 (3.1 - 12.2) 1/2 (1.3) 1/2 (1.3) 5/8 (1.6) 1/2 (1.3)
40 - 100 (12.2 - 30.5) 3/4 (2.0) 1/2 (1.3) 3/4 (2.0) 1/2 (1.3)
100 - 150 (30.5 - 45.7) 3/4 (2.0) 1/2 (1.3) 7/8 (2.3) 5/8 (1.6)
150 - 200 (45.7 - 61.0) 3/4 (2.0) 1/2 (1.3) 7/8 (2.3) 3/4 (2.0)
Some areas allow the use of copper tubing or galvanized pipe. Check with local approval agencies and codes. NEVER use plastic pipe.
GAS PRESSURE REQUIREMENTS
A MAJOR CAUSE OF OPERATING PROBLEMS WITH GAS APPLIANCES IS IMPROPER GAS PRESSURE!
Such problems as changes in flame color or configuration, pilot or burner outages, intermittent operation, changes
in heat output, excessive burner noise, etc. can be the result of changes in gas pressure or improper gas pressure
at the time of installation. The most important item to check during installation, and the first thing to check when
problems occur, is gas pressure!
The natural gas supply normally enters a residence at ½ PSI [13‖ - 15‖ W.C.] [3.5 KPA]. A regulator located inside
the residence drops this pressure to 7‖ W.C. [1.8 KPA]. This ―inches to inches‖ regulator is sufficient to service
the existing gas appliances (stove, dryer, furnace, etc.). If the capacity of the regulator is not sufficient for the
addition of the X-
62, a second ―inches to inches‖ regulator must be installed. EXCEPTION: Some codes allow 2
PSI [1.4 KPA] gas supplies to enter the residence, in which case ―pounds to inches‖ regulators are used.
The following table provides information on the requirements for correct gas pressure. Be sure your gas supplier
or plumber follows these requirements carefully.
INLET GAS PRESSURE
DESIRED
PRESSURE
MINIMUM
PRESSURE
MAXIMUM
PRESSURE
MANIFOLD
PRESSURE *
AIR SHUTTER
OPENING
NATURAL
GAS
7.0‖ W.C.
(1.75 kPa)
6.5‖ W.C.
(1.12 kPa)
10.5‖ W.C.
(2.61 kPa)
3.5‖ W.C.
(0.87 kPa)
1/4 ‖
(6 mm)
L.P. GAS
11.0‖ W.C.
(2.75 kPa)
12.2‖ W.C.
(2.75 kPa)
13.0‖ W.C.
(3.24 kPa)
10.0‖ W.C.
(2.5 kPa)
7/16 ‖
(13 mm)
* A pressure tap fitting is located on the gas valve (see Fig. 4). A qualified installer must measure the manifold
pressure at this fitting with the burner operating on its highest setting. Gas pressure may vary by ± 5%.