Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS 사용자 설명서
Unit Start Up Checklist
Ensure that the location and installation of the equipment is in
accordance with the installation manual, all local installation
requirements, and with the latest edition of the National Fuel
Gas Code, ANSI 223.1 and/or CAN/CGA-B149 Installation
Code.
requirements, and with the latest edition of the National Fuel
Gas Code, ANSI 223.1 and/or CAN/CGA-B149 Installation
Code.
1. Measure the supply gas pressure.
For natural gas
models, the supply gas pressure should be between
4.5" w.c. to 10.5" w.c. For LP gas models, the supply gas
pressure should be between 8" w.c. to 13" w.c. For a
detailed procedure on measuring the supply gas pressure,
reference page 28 of this manual.
4.5" w.c. to 10.5" w.c. For LP gas models, the supply gas
pressure should be between 8" w.c. to 13" w.c. For a
detailed procedure on measuring the supply gas pressure,
reference page 28 of this manual.
2. Measure the differential air pressure. The differential
air pressure for the 500,000 - 750,000 Btu/hr models
should be between 1.5" w.c. to 1.65" w.c. The differential
air pressure for 990,000 - 2,070,000 Btu/hr models should
be between 1.1" w.c. to 1.3" w.c. Reference pages 49 and
50 of this manual for the proper procedure for measuring
the differential air pressure. If an adjustment is necessary
follow the procedure on page 50 of this manual.
should be between 1.5" w.c. to 1.65" w.c. The differential
air pressure for 990,000 - 2,070,000 Btu/hr models should
be between 1.1" w.c. to 1.3" w.c. Reference pages 49 and
50 of this manual for the proper procedure for measuring
the differential air pressure. If an adjustment is necessary
follow the procedure on page 50 of this manual.
Note: The combustion air fan(s) is factory preset and should
not need adjustment. However, due to installation and
environmental conditions adjustment of the air fan shutter(s)
may be necessary at start up.
environmental conditions adjustment of the air fan shutter(s)
may be necessary at start up.
3. Measure the net manifold gas pressure. For 500,000 -
750,000 Btu/hr models the net manifold gas pressure for
natural gas models should be 1.8" w.c For LP gas models
the net manifold gas pressure should be 4.6" w.c. For
990,000 - 2,070,000 Btu/hr models the net manifold gas
pressure for natural gas models should be 1.2" w.c. For LP
gas models the net manifold gas pressure should be
4.6" w.c. For the proper procedure for measuring net
manifold gas pressure, reference page 30 of this manual. If
an adjustment of the net manifold gas pressure is
necessary, follow the procedure on page 30 of this manual.
natural gas models should be 1.8" w.c For LP gas models
the net manifold gas pressure should be 4.6" w.c. For
990,000 - 2,070,000 Btu/hr models the net manifold gas
pressure for natural gas models should be 1.2" w.c. For LP
gas models the net manifold gas pressure should be
4.6" w.c. For the proper procedure for measuring net
manifold gas pressure, reference page 30 of this manual. If
an adjustment of the net manifold gas pressure is
necessary, follow the procedure on page 30 of this manual.
Note: The gas valves are factory preset and should not need
adjustment. However, due to installation and environmental
conditions adjustment of the gas valves may be necessary for
start up.
conditions adjustment of the gas valves may be necessary for
start up.
4. For negative draft vent systems, measure the draft in
the vent stack.
The negative draft should be between
-.02 w.c. to -.08 w.c. Reference pages 10 - 26 of this
manual to determine which venting system is in use.
manual to determine which venting system is in use.
Note:
For positive pressure venting systems a draft
measurement is not required. Ensure that the vent length does
not exceed the maximum lengths listed in the Installation and
Service Manual.
not exceed the maximum lengths listed in the Installation and
Service Manual.
5. Adjust the temperature set point on the digital
temperature control to the desired pool temperature.
Reference pages 40 and 41 of this manual for information
regarding the operation and adjustment of the digital
temperature control.
Reference pages 40 and 41 of this manual for information
regarding the operation and adjustment of the digital
temperature control.
6. A 3-way automatic bypass valve is factory installed to
maintain a minimum temperature of 130° to the inlet of the
pool heater to protect against flue gas condensation.
Manual adjustment of the valve is not required.
pool heater to protect against flue gas condensation.
Manual adjustment of the valve is not required.
Note:
If the inlet temperature of the pool heater can not be
maintained at 130°, reference pages 33, 34, and 46 of this
manual to ensure that the pipe size and piping arrangements
are correct.
manual to ensure that the pipe size and piping arrangements
are correct.
If problems arise during the start up, reference the Installation
and Service Manual and/or consult the factory.
58
Appendix A
Commercial Pool Heaters