Front view
3/8" mounting
holes (4 places)
Louver areas
RFRW-340
shown
C
B
8"
8"
9-7/16"
7"
Electrical
junction
Top view
Models RRW, RFRW, RRC and RFRC
Side view
Models RRWI and RFRWI
Side view
D or F
(Ducted opening centered)
E or G
10"
A
H
Piping
access
section
Fan
speed
access
Filter position
1 row hot
water return
and 1 row
steam
supply
1 row hot
water return
and 1 row
steam supply
1 row hot
water suppy
and 1 row
steam return
2 row hot
water return
2 row
hot water
supply
2 row
hot
water
return
7-3/8"
8-1/8"
2 row hot water
supply
7-1/4"
4-1/2"
24"
24"
27"
27"
18-3/8"
16-5/8"
15-7/8"
13-5/8"
1 row hot water supply
and 1 row steam return
Filter position
10-3/8"
2"
5-1/4"
7-1/4"
2"
5-1/4"
4-1/2"
5-5/8"
Dimensions and data
Models RRW, RFRW, RRC, RFRC, RRWI & RFRWI
Notes:
1 and 2 row coil supply and return 1/2" nominal
(5/8" OD) all sizes
Unit shown with left hand piping connections and
right hand electrical connections as standard
Right hand piping connections with left hand
electrical connections available as an option
Piping hand determined when facing the air outlet
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
See www.zehnder-rittling.com for any recent
updates or changes
Dimensional data
Unit
size
A
B
C
Louvers Duct opening
H
D
E
F
G
02
38-3/16 22-3/16 24 20
6
18-3/8 5-1/8 41-3/16
03
44-3/16 28-3/16 30 26
6 24-3/16 5-1/8 47-3/16
04
50-3/16 34-3/16 36 32
6 30-3/16 5-1/8 53-3/16
06
62-3/16 46-3/16 48 44
6 42-3/16 5-1/8 65-3/16
08
68-3/16 52-3/16 54 50
6 48-3/16 5-1/8 71-3/16
10
76-3/16 60-3/16 62 58
6 56-3/16 5-1/8 79-3/16
12
86-3/16 70-3/16 72 68
6 66-3/16 5-1/8 89-3/16
8