CLCH-SVX08A-EN
27
Operation
7.
Remove any debris from combustion air inlets and/or hoods. Note that some combustion air
inlets are located on the floor panel of the piping vestibule. Insure the openings are not blocked.
8. For units with burners size 1250 and larger, ensure exhaust fan rotation is correct.
Startup
WARNING
Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it may be necessary
to work with live electrical components. Have a qualified licensed electrician or other individual
who has been properly trained in handling live electrical components perform these tasks.
Failure to follow all electrical safety precautions when exposed to live electrical components
could result in death or serious injury.
1.
Start the air-handling unit fan. The field-installed supply fan interlock and primary airflow switch
contacts (AI1) should close.
2. The high-temperature-limit switch contacts (HL1), the modulating gas valve actuator, and its
end switch contacts (AES) should be closed.
3. The building control system should call for heat, closing a contact between terminals four and
five.
4. Open the manual gas valve outside the unit next to the gas pressure regulator and bleed air
from the piping.
Figure 16. Control panel for the JR burner on 200-1000
mbh (3:1 & 10:1 turndown) units
Figure 17. Control panel for the FDM burner on 1250-2400
(20:1 turndown) units
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 ...
