Wall trim shipped loose,
field mounted to
desired depth
Auxiliary
drain pan
Drain pan pitch
C
Front View
3/8" mounting
holes (4 places)
Electrical
junction box
9-7/16
"
1/2" NPT auxiliary drain connection
3-1/2
"
B
Piping
access
section
Fan
speed
access
section
10
"
D
(Outlet opening centered)
E
Supply
(Cooling)
Return
G
J
L
N
K
M
5-11/16"
27
"
24
"
H
F
2-7/16"
6-1/2"
Filter position
Top View
Side View
7"
8"
8"
A
(Hot water or steam)
Return (hot water)
Supply (steam)
Supply (hot water)
Return (steam)
2-5/16" (top), 2-7/16" (bottom)
6-1/2"
Dimensions and data
Models FRW and FFRW
Dimensional data
Unit size
A
B
C
D
E
02
38-3/16
22-3/16
24
20-3/4
41-3/16
03
44-3/16
28-3/16
30
25
47-3/16
04
50-3/16
34-3/16
36
29-1/4
53-3/16
06
62-3/16
46-3/16
48
42
65-3/16
08
68-3/16
52-3/16
54
51-1/8
71-3/16
10
76-3/16
60-3/16
62
59
79-3/16
12
86-3/16
70-3/16
72
69
89-3/16
Dimensional data
Coil
F
G
H
J
K
L
M
N
3 Row
N/A
N/A
N/A
N/A
16-1/8
3
17-3/8
4-5/8
4 Row
N/A
N/A
N/A
N/A
16-1/8
3
17-3/8
4-5/8
3/1 Row
15-9/16
7-3/4
19-5/16 4-15/16 16-1/8
3
17-3/8
4-5/8
4/1 Row
16-15/16 8-1/16 20-11/16 5-1/4
16-1/8
3
17-3/8
4-5/8
Notes:
3 and 4 row coil supply and return 1/2" nominal (5/8" OD) all sizes.
1 row coil (reheat option) supply and return 1/2" nominal (5/8" OD)
all sizes.
Left hand piping connections shown, right hand electrical as
standard. Piping hand determined when facing the air outlet.
Unit length: For 6" extended end pocket add 6" to dimension “A.”
All listed dimensions are approximate and are subject to change
without notice. Modifications to the product specifications must be
accepted by Zehnder Rittling at its base office.
13
Dimensions and data
