Reznor SHH (Indoor PreevA) Unit Installation Manual - Manual (Page 29)

Form I-PDH/SDH/PEH/SHH/PXH, Page 29
FIGURE 20C -
Economizer Logic
Module Setpoint and
LED Locations
Exhaust Fan Setpoint
LED lights when exhaust fan is on.
Minimum Damper Position Setting
Maximum Damper Demand Control Ventilation Setpoint
LED lights when Demand Control is above the setpoint.
Demand Control Ventilation Setpoint
LED lights when outdoor air is suitable for free cooling.
Enthalpy Changeover Setpoint
6.5 Optional
Evaporative
Cooling
Module (factory
installed) -
Models PDH,
SDH, SHH, PEH,
and PXH
FIGURE 21 -
Evaporative
Cooling
Module
Dimensions
and Water
Connection
Locations
D - Duct Opening
B
C -
Duct
Opening
7-15/16”
(202mm)
9/32” (7mm) 31-1/16” (789mm)
3” (76mm)
E Drain
Connection
3/4” NPT
Male
Overflow
Connection
3/4” NPT
Male
2-1/2” (64mm) 22-1/16” (560mm)
Water
Connection
1/2” NPT
Male
(can be
ordered
on either
side)
6-5/32”
(156mm)
Entering Air View Control Side View
(Left side is illustrated.
Depending on how the system
was ordered, controls could be
either right or left. Dimensions
are the same.)
Bottom View
Airflow
A
TABLE 19 - Evaporative Cooling Module Dimensions
The evaporative cooling module is factory installed as the “entering air” cabinet on the
system base. The evaporative cooling module must be connected to a water supply
and to a drain.
Depending on how it was ordered, the cooler has either a recirculating float and pump
water control system (Option ECD2) or an AquaSaver microprocessor timed water con-
trol system (Option ECD1). All coolers are equipped with 12” cellulose or glass fiber
media and may have optional 1” or 2” aluminium pre-filters.
NOTE: See TABLE 5, page 10, for evaporative cooling module weights.
PDH/SDH SHH PEH PXH A B C D E
Dimensions (inches)
75/100 N/A 10A/20A/40A 000A 34-1/2 33-3/4 27-9/32 29-13/16 15-3/8
125/150 N/A 15B/30B/60B 000B 34-1/2 43-3/4 27-9/32 39-13/16 20-3/8
175/200/225 130/180 N/A 000C 43-3/4 33-3/4 36-17/32 29-13/16 15-3/8
250/300 260
30D/60D/90D/
120D
000D 43-3/4 50 36-17/32 46-1/16 23-1/2
350/400A 350 40E/80E/120E 000E 43-3/4 58 36-17/32 54-1/16 27-1/2
Dimensions (mm)
75/100 N/A 10A/20A/40A 000A 876 857 693 757 391
125/150 N/A 15B/30B/60B 000B 876 1111 693 1011 518
175/200/225 130/180 N/A 000C 1111 857 928 757 391
250/300 260
30D/60D/90D/
120D
000D 1111 1270 928 1170 597
350/400A 350 40E/80E/120E 000E 1111 1473 928 1373 699