26
CLCH-SVX08A-EN
Operation
WARNING
Hazardous Gases and Flammable Vapors!
Exposure to hazardous gases from fuel substances have been shown to cause cancer, birth
defects or other reproductive harm. Improper installation, adjustment, alteration, service or use
of this product could cause flammable mixtures. To avoid hazardous gases and flammable
vapors follow proper installation and set up of this product and all warnings as provided in this
manual. Failure to follow all instructions could result in death or serious injury.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
WARNING
Hazard of Explosion!
Adjustment of gas train linkages is normally not required. However, installations at altitudes of
3,000 feet above sea level or higher may require adjustment of the air-fuel linkage for proper
combustion. Linkage and air-fuel adjustment, when necessary, should only be done by an
experienced, qualified gas heat technician. Improper adjustment of the burner air-fuel mixture
could result in death or serious injury.
Gas heat sections have been run-tested in the factory to assure proper operation and ease of
startup. The actuator linkages controlling the air–fuel mixture are preset for optimum efficiency and
performance.
Thoroughly review all service literature before startup and servicing. The sequence of operation
and all details of the flame-safeguard control system can be found in the burner equipment
literature. The technical bulletins cover the individual components of the heating system. This
literature ships inside the piping vestibule of the gas heat section.
Initial Startup
Note:
The procedures discussed in this section should be done by qualified technicians who are
experienced with gas heating equipment.
Pre-Startup
1.
Close all manual gas valves.
2. Move the manual disconnect switch in the vestibule to the OFF position.
3. Check the air shutter and modulating gas valve linkages for tightness.
4. Attach a manometer to the bleed port on the side of the first manual gas valve in the burner
vestibule at the inlet end of the gas train, upstream of the automatic gas valve/regulator. This
manometer checks incoming gas pressure and should measure 7 to 14 inches wc. (Exception:
1250 through 2000 Mbh with 10:1 turndown require 9 to 14 inches wc.)
5. Attach another manometer to the burner manifold to check the burner manifold pressure while
the unit is firing.
6. Attach a third manometer to the pilot gas line to check the pilot gas pressure while the unit is
firing.
Summary of Contents for Gas Heat Sections for Performance Climate Changer Air Handlers
Page 23: ...CLCH SVX08A EN 23 Wiring Figure 13 200 1000 MBh 3 1 or 10 1 turndown wiring diagram ...
Page 24: ...24 CLCH SVX08A EN Wiring Figure 14 1250 2000 MBh 3 1 or 10 1 turndown wiring diagram ...
Page 25: ...CLCH SVX08A EN 25 Wiring Figure 15 1250 2400 MBh 20 1 turndown wiring diagram ...
Page 35: ...CLCH SVX08A EN 35 Notes ...
