Reznor REC (Evaporative Cooling) Unit Installation Manual - Manual (Page 3)

Form I-REC, P/N 160201 R3, Page 3
2.0 Dimensions
 Make certain the roof is level and free of debris where cooling module will be
mounted. Do not mount directly on soft tar roofs where the legs could sink and tilt
the cooler. Provide a level, weather-resistant, solid wood or metal base under the
cooling module support legs.
 Make certain that there will be adequate clearance between the bottom of the
reservoir and the roof or platform to allow for drain and overflow pipe connections.
FIGURE 1 - Dimensions of Model REC - inches (mm)
A
Sizes 40-90 - “B”
23-13/16 (605)
Size 180 - “B”
47-13/16 (1214)
Opening Size
“C” Long x “D” High
G
1-1/32
(26)
1-1/32
(26)
2(51) 6 (152)
Adjustable Legs
16 (406) maximum
9 (229) minimum
5-9/16 (141)
2(51)
(152 )
6
21-7/16
(555 )
5-1/32
(128 )
Adjustable
21-9/16 (548)
maximum
14-9/16 (370)
minimum
Water
Connection
(1/4” tubing)
Water
Connection
(Control
Side)
Electrical
Connection
Airflow
Control Pump
Access Panel
24-1/16
(611) 27/32 (21)
F
Duct Opening
“F” x “E”
9-17/32
(242)
2(51)
Drain/Overflow
Connection Drain/Overflow Connection
Inlet View
Control
Side
View
Outlet
View
Sizes 40-90 - “E”
21-5/16 (541)
Size 180 - “E”
45-5/16 (1151)
Size
A C D F G
inches mm inches mm inches mm inches mm inches mm
40 28-9/16 725 26-1/2 673 24 610 23-13/16 605 26-1/16 662
50 34-1/16 865 32 813 24 610 29-5/16 745 31-9/16 802
60 39-3/16 995 37-1/2 953 24 610 34-13/16 884 37-1/16 941
70 47-13/16 1214 45-3/4 1162 24 610 43-1/16 1094 45-5/16 1145
80 53-5/16 1354 51-1/4 1302 24 610 48-9/16 1233 50-13/16 1291
90 58-13/16 1494 56-3/4 1441 24 610 54-1/16 1373 56-5/16 1430
180 58-13/16 1494 56-3/4 1441 48 1219 54-1/16 1373 56-5/16 1430
Side View
Model
REC
D
minimum
Airflow
Top view of transition
ductwork MUST be
symmetrical.
Reznor Direct-Fired Makeup Air System
Model RDF, ADF, or ADFH only
Transition
Duct
Length of Transition Duct*
RDF* D
1 & 2 38” (965mm)
3 42” (1067mm)
ADF/ADFH D
300 & 500 24” (610mm)
700 & 1200 30” (762mm)
FIGURE 2 - Minimum Length of Field-Installed Transition Duct - inches (mm)
D
minimum
Airflow
Blower
Cabinet
Furnace
Discharge
Plenum
Side View
Model
REC
Top view of transition
ductwork MUST be
symmetrical.
Reznor Indirect-Fired
Makeup Air System
or Air Handler
(Examples: Reznor
Model Series RXE, REB,
RPVE, RPBE,RPAK,
RGB, RPB, RGBL,
RPBL, BF, RBA,
RBL, SSCBL, PGBL)
Transition
Duct
Length of Transition
Duct
REC D
40-90 24” (610mm)
180 30” (762mm)
Model REC with
Reznor Model
RDF* or ADF/ADFH
*Model RDF with over
17,300 CFM requires
REC 360; see
Appendix, page 11.
Model REC with
Reznor Indirect-
Fired Makeup Air
Systems
NOTE: See Appendix,
page 11, for cross-
reference chart.
3.0 Mechanical 3.1 Assembly Instructions
Be sure all preparations have been made. Review Preparation Check List in Para-
graph 1.3. Verify that all factory and field-supplied parts are available.
3.1.1 Base, Cooling Module, and Transition Duct
Assemble Legs - Using four bolts and nuts per leg, fasten two “halves” together. Leg
will have a top and bottom flange. Repeat for all four legs. (See FIGURE 3A.) Adjust
legs to appropriate height and tighten bolts securely.
NOTE: If installing a Size
360 which is two Size 180
modules, refer to FIGURE
17, Appendix, page 11, and
repeat assembly instruc-
tions for both modules.
REC Size
360 is two
separate Size
180 modules -
one with right
side controls
and one
with left side
controls.