Specifications

PRO-C Series
13
Select motors using the fan tables on page 6. For the unit and motors selected,
Table 5 will have the corresponding full load amps (FLA) for each motor.
Electrical Data
Equation 2a. Formula to determine
minimum circuit ampacity (MCA) without
pre-heater.
Equation 3. Formula to determine maximum
overcurrent protection (MOP).
Equation 2b. Formula to determine mini-
mum circuit ampacity (MCA) with preheater.
To determine minimum circuit ampacity (MCA):
1.25 * FLA largest fan motor (Table 5)
+ FLA other fan motor (Table 5)
+ FLA wheel drive/ accessories (Table 5)
= MCA
For the PRO-C-1000 without preheater: MOP=15
For the PRO-C-2400 with preheater:
2.25 * FLA largest fan motor (Table 5)
+ FLA other fan motor (Table 5)
+ FLA wheel drive/ accessories (Table 5)
+ FLA optional preheater (Table 6)
= MOP
Using the total above, select the next smaller sized time delay fuse (LOW-
PEAK
TM
, FUSETRON or equivalent) or HACR-type circuit breaker,
minimum of 15 amps. If the fuses/breakers do not hold, consult the
National Electric Code for suitability of larger fuses/breakers.
To determine maximum overcurrent protection (MOP):
To determine minimum circuit ampacity (MCA):
FLA exhaust fan motor (Table 5)
+ FLA supply fan motor (Table 5)
+ FLA wheel drive/ accessories (Table 5)
+ FLA optional preheater (Table 6)
* 1.25
= MCA