Rapid 7500 136 Installation, operation & service manual - page 154
7500-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
142 of 143
START-UP "NO HEAT"
Place all disconnects in "ON" position and test for 120 V on transformer secondary to ground before turning the
selector switch to "SUMMER" mode. The unit will start up in the "no heat" mode.
Check for the correct rotation of supply fan. (Reverse if necessary.)
Measure and record amp draws
SUPPLY BLOWER MOTOR
Leg 1
Leg 2
Leg 3
Measure and record RPM of blower:
deg. F
Check to see that only the pilot shut off valve is open an burner valve is off. Reset the optional low gas pressure
switch if the unit is equipped with it and jumper out the optional high gas pressure switch if the unit is equipped with it.
Start the burner. Move the selector switch to "Winter" or "Heat".
After pilot lights, check the flame signal. Read and record the D.C. voltage. Do a visual inspection of the pilot flame
and make any adjustments if needed
D.C. Volts
Open main shut off valve; visually inspect the burner to make sure it is not over firing
Adjust the temperature rise to match the serial tag temperature rise
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NOTE: The minimum gas pressure must be at least the value listed on the unit serial tag.
If this requirement is not met, the unit will not
The following items should be completed during the final walk through with the customer
Personnel Training Review
It is important that everyone concerned with the operation and maintenance of the equipment
be trained in the safety procedures contained in the operation.
Operation of the temperature control? (Including "heat" minimum temp. rise?)
If no, explain:
Location and operation of safety disconnect switch? (use lockout/tag out procedures)
If no, explain:
Proper maintenance and replacement of filters?
If no, explain:
Location and operation of safety devices and location of reset buttons?
If no, explain:
Note ambient air temperature, with the unit running in the "no heat" mode. Ambient air temperature:
wc