SECTION 19: T
ROUBLESHOOTING
141 of 143
Control Settings
General
Fan Limit (Fan switch set to 110, HYS Pot set at 15)
Burner Air Flow Operating
Full Mod. High Fire Purge
Full Mod. Low Fire Start
Full Mod Cycling On/Low Fire Start
High Temp Limit [set to 200° F (93° C)]
Gas
Low Gas Pressure Switch
High Gas Pressure Switch
Oil
Low Oil Pressure Switch
High Oil Pressure Switch
Check all door seals and latches. Confirm the latch is adjusted for proper tension
Check control lights for proper operation (if applicable)
Check temperature control location
Check temperature sensor mounting
Check incoming power supply (line voltage) before turning on unit disconnect.
(NOTE: for 3 phase, voltage should be measured from line to line)
Leg1-2
Leg1-3
Leg2-3
/60/Phase
Record nameplate voltage from serial tag.
Voltage
Phase
60Hz
(NOTE: This must match incoming power supply. If not, contact the RAPID
®
Representative of Rapid Engineering LLC directly)
Record serial and electrical drawing number from the serial tag on the door of the air make-up unit
.
o
N
g
n
i
w
a
r
D
l
a
c
i
r
t
c
e
l
E
.
o
N
l
a
i
r
e
S
(NOTE: Refer to this number when contacting Weather-Rite on all service questions relating to the air make-up unit)
Supply Motor
f.l.a.
Overloads set at
amp
Overloads set at
amp
Check the belt tension on supply fan. Adjust if necessary
(NOTE: Belt should not move more than 1/2 inch)
Locate pilot gas line and open pipe plug to bleed off main gas line.
Record Pressure
" W.C.
Insure pilot and main gas valves are off
Record full load amps (f.l.a.) for the voltage matching the service voltage on all motors and set overloads. Set overloads at nameplate
After bleeding, connect pressure gauge to the gas line where the plug was removed and measure incoming gas pressure.
(NOTE: If pressure is more than 28" of water column (1 LB), a pressure regulator is required. Consult service manual for maximum
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Страница 33: ...SECTION 6 LIFTING AN AIR TURNOVER UNIT 21 of 143 FIGURE 10 Lifting an Air Turnover Unit Base Section...
Страница 36: ...7500 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 24 of 143 FIGURE 12 Air Turnover Unit Sections Schematic...
Страница 67: ...SECTION14 ELECTRICAL 55 of 143 FIGURE 38 Wiring Diagram Key...
Страница 115: ...SECTION 15 SEQUENCE OF OPERATION 103 of 143 FIGURE 83 Wiring Subbase and Sequence Chart for RM7897 Burner Control Module...
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