HTP SSC-80 Installation Start-Up Maintenance Parts

10
Due to the plastic dip tube in the cold water inlet, exercise extreme caution when soldering.
A temperature limiting or mixing valve is not entirely necessary, but recommended in installations servicing
disabled or elderly persons, or children. Take extreme caution to avoid scalding when temperature limiting or
mixing valves are not used.
G. POTABLE EXPANSION TANK
A potable hot water expansion tank is required to offset heated water expansion. If there is a back flow preventer
or any other type of no return or check valve on the system, a thermal expansion tank is mandatory. The
expansion tank must be sized for the entire water volume of the hot water system. A weeping relief valve
indicates the need for an expansion tank. See Typical Expansion Tank installation, Fig. 3, for more details.
H. PRESSURE DROP SIZING FOR CIRCULATOR
Use the chart below to properly calculate circulator flow rate for the installation. The flow chart below represents
the pipe run, water heater, and heat exchanger ONLY and does not include any flow checks, zone valves, or
friction loss through the boiler.
PRESSURE DROP FOR PIPE LENGTH OF 1” COPPER, AND FOR SIX 90
o
ELBOWS, AND ON TEE ON THE
RUN
PIPE SIZE
20’
30’
40’
50’
60’
SSC-35
8 GPM
6.28
6.53
6.78
6.28
7.28
SSC-50
8 GPM
6.48
6.73
6.98
7.23
7.48
SSC-80
10 GPM
6.19
6.55
6.85
7.15
7.45
SSC-119
12 GPM
16.19
16.79
17.39
17.99
18.59
Table 3

HTP SSC-80 Specifications

General

Brand	HTP
Model	SSC-80
Category	Water Heater
Language	English