Raypak 0090B 0135B Operating And Installation Instructions page 3

HEATING NET
INPUT CAPACITY I=B=R WATER
MODEL MBH MBH RATING
H-0030 30 25 22
H-0042 42 35 30
H-0066 66 54 47
H-0090 90 74 64
H-0135 135 109 95
H-0180 180 148 129
1
3
/
8
OUTLET
A
16
1
/
4
2
C
1
/
33
4
THERMOSTAT CONN
(ELECTRICAL CONN
ON OTHER SIDE)
22
PIPING
CONNECTIONS
GAS
NPT. NPT. A B
1" 1/2" 11" 5 3/4
1" 1/2" 11" 5 3/4
1" 1/2" 11" 5 3/4
1" 1/2" 11" 5 3/4
1 1/4" 1/2" 18" 6 1/4
1 1/4" 1/2" 18" 6 1/4
B
AUTOMATIC
VENT DAMPER
K
(FIELD INSTALLED)
INLET
7
11
/
8
6
MIN
19
3/4 NPT PIPE
TO DRAIN
1
/
3
4
GAS
1
CONN 12
5
1
/
8
1
/
26
2
K
VENT
C DIA.
5 1/2 4"
5 1/2 4"
5 3/4 5"
5 3/4 5"
6 1/4 6"
8.0 7"
18
/
2