Raypak WH & P L W User Manual
Page 18
18
Potable Water and Space Heating
1.
All piping materials and components connected to
the water heater for the space heating application
shall be suitable for use with potable water.
2.
Toxic chemicals, such as used for boiler treatment,
shall not be introduced into the potable water used
for space heating.
3.
If the heater will be used to supply potable water,
it shall not be connected to any heating system or
components previously used with a non-potable
water heating appliance.
4.
When the system requires water for space heating
at temperatures higher than 140°F, a means such
as a mixing valve shall be installed to temper the
water in order to reduce scald hazard potential.
CAUTION: When this heater is used for both
potable water and space heating, observe the follow-
ing to ensure proper operation.
Fig. 13: Single Domestic Hot Water Heater and Storage
Tank
Soft (0-4 grains per gallon) Medium (5-15 grains per gallon) Hard* (16-25 grains per gallon)
Model
No.
T gpm
P
MTS SHL
T
gpm
P
MTS
SHL
T
gpm
P
MTS
SHL
992A 28
60
2.7
2
4.6
20
83
5.2
2
8.6
13
132
13.1
2
21.0
1262A 30
72
4.4
2
7.0
20
106
9.6
2
14.8
16
132
14.8
2
22.7
1532A 30
86
7.1
2
10.7
20
132
16.5
2
24.4
20
132
16.5
2
24.4
1802A 30
101
10.7
2
15.5
23
132
18.3
2
26.1
23
132
18.3
2
26.1
2002A 30
112
13.9
2
19.7
26
132
19.0
2
26.9
26
132
19.0
2
26.9
2072A 30
116
14.8
2
21.0
27
132
19.0
2
26.9
27
132
19.0
2
26.9
2342A