Top view (top outlet)
E
(Opening centered)
Outlet opening
9-7/8
"
6"
A
C
E
(Outlet opening centered)
23-15/16
"
Auxiliary
drain pan
6-5/8"
4-1/8"
1/2" NPT auxiliary
drain connection
Drain pan pitch
4-1/2
"
18-5/8
"
10-1/4
"
6-3/4
"
1"
Electrical
j box 4"x4"
*Electrical
control box
D (Inlet opening centered)
B
Front view (top outlet)
3-5/16"
Return
Supply
H
4-13/16"
23-15/16
"
17-5/16
"
16
"
4-3/4"
Filter position
3-1/16"
4-1/16
"
3-1/2
"
(Inlet opening)
G
F
6" 1-1/8
"
J
Side view (front outlet)
(Cooling)
Return (hot water)
Supply (steam)
(Hot water or steam)
Supply (hot water)
Return (steam)
Return
Supply
6"
1"
2"
H
4-13/16"
23-15/16
"
17-5/16
"
16
"
3-1/16"
4-3/4"
4-1/16
"
3-1/2
"
(Inlet opening)
G
F
Filter position
Side view (top outlet)
(Cooling)
Return (hot water)
Supply (steam)
(Hot water or steam)
Supply (hot water)
Return (steam)
5/8"
3/8"
2-1/4"
7-1/8"
9-1/8
"
Dimensions and data
Model FFH
Dimensional data
Unit size
A
B
C
D
E
02
24-1/8
22-3/8
24
21
18
03
30-1/8
28-3/8
30
27
24
04
36-1/8
34-3/8
36
33
30
06
48-1/8
46-3/8
48
45
42
08
54-1/8
52-3/8
54
51
48
10
62-1/8
60-3/8
62
59
56
12
72-1/8
70-3/8
72
69
66
Dimensional data
Coil
F
G
H
J
3/1 Row
19-3/16
15-7/16
4-15/16
7-3/4
4/1 Row
20-9/16
16-13/16
5-1/4
8-1/16
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.
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Dimensions and data