Reznor SHH (Indoor PreevA) Unit Installation Manual - Manual (Page 62)

Form I-PDH/SDH/PEH/SHH/PXH, Page 62
9.2 Checklist Prior
to Startup
Assumptions: All connections are made; actual startup is imminent. Site is clean; all
excess supplies, scraps, and debris have been removed. Clean filters are in place.
Doors are open for checks.
9.2.1 All Systems Check List Prior to Startup:
 Check clearances. All clearances must be as illustrated in Paragraph 4.1.
 Verify the electrical supply matches voltage rating of the unit. (Refer to the rating
plate.)
 Check the wiring for loose connections or damaged wire. Tighten connections.
Replace damaged wiring. (See Paragraph 7.0 or the wiring diagram for
replacement wiring requirements.)
 Check all field wiring against the wiring diagram. Be sure all field-installed controls
are in place. Be sure that wire gauges are as required for the electrical load.
All field wiring must be in compliance with the National Electric Code and local
regulations.
 Check that fuses or circuit breakers are in place and sized correctly.
 Be certain optional manual reset controls (firestat and high gas pressure switch)
are reset.
 If any changes are required to factory settings, be sure they have been made.
(Refer to control instructions shipped with the unit.)
 IMPORTANT - Before applying power, check blower pulley, blower wheel,
and motor pulley to be sure they are secure to the shafts. Check blower and
pulleys for free movement.
Check belt tension and alignment. See Paragraph 6.8.
 Verify the removal of all shipping supports.
 Check discharge duct connections. See Paragraph 6.7.2.
 Verify all condensate drain traps are filled with clean water.
9.2.2 Gas Heat (SDH, PDH, and SHH) Checklist Prior to Startup:
 Check gas piping for leaks and proper supply gas pressure (6.0" w.c.
minimum/14.0” w.c. maximum). Bleed gas lines of trapped air.
a) Turn manual shutoff valve to off position.
b) Turn gas supply on.
c) Observe gas meter for movement, or
d) Attach pressure gauge readable to 0.1" w.c. and after turning gas on for ten
seconds, turn gas supply off. No change in pressure should occur over a three-
minute period.
e) If either c) or d) above indicate a leak, locate leak by brushing a soapy solution
on all fittings. Bubbles will appear at the leak. Repair and repeat tests.
 MODELS PDH, SDH, and SHH - Check venting. See Venting Manual. Be sure
that both flue discharge and combustion air openings are free of obstructions.
 If installed in California, verify that California Warning Label is displayed. See
Paragraph 1.3.
 Verify that the condensate drain(s) are connected and properly trapped. See
Paragraph 6.2 and the Model SHH venting manual, Form I-SHH-V.
9.2.3 Mixing Box Damper (if equipped) Check:
 If the installation has a mixing box with two dampers, adjust damper linkage. See
Paragraph 6.4.4.1.
9.1 General 9.0 Commissioning
and Startup
DANGER
To prevent injury or death due to electrocution or contact with moving parts, lock
disconnect switch open when doing checks prior to startup. See Hazard Levels,
page 2.