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Bosch Greensource SM024 Installation, Operation And Maintenance Manual page 19

Greensource cdi series sm model water-to-air heat pumps
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Greensource CDi Series SM Model
NOTICE: Proper testing is required to
ensure the well water quality is suitable for
use with water source equipment. When in
doubt, use cupro-nickel.
In conditions anticipating moderate scale
formation or in brackish water, a cupro-nickel heat
exchanger is recommended. (Refer to the water
quality table on page #20.) Water quality must
meet the standards stated in the table. Both the
supply and discharge water lines will sweat if
subjected to low water temperature. These lines
should be insulated to prevent damage from
condensation. All manual flow valves used in the
system must be ball valves. Globe and gate valves
must not be used due to high-pressure drops and
poor throttling characteristics.
NOTICE: Never exceed the recommended
water flow rates as serious damage or
erosion of the water-to-refrigerant heat
exchanger could occur.
Always check carefully for water leaks and repair
appropriately. Units are equipped with swivel
female pipe thread fittings. Swivel fittings are used
in typical residential installation where water
pressure ratings are below 125 psi. For
higher-pressure ratings that are typical to
commercial installations, swivel fittings MUST not
be used. (For VT units, the swivel fitting is shipped
Greensource CDi Series SM Model
loose. For HZ units, the fitting is factory brazed.)
Consult Unit Dimensional Drawings on page #63
through page #65.
Water side pressure rating is 450 psi for FPT
fittings and 125 psi for field or factory-installed
swivel fittings.
NOTICE: Do not overtighten the
connections.
Swivel Fitting Gasket Installation
Swivel fittings include a gasket that must be used.
To install, remove the gasket from the plastic bag
attached to the swivel fitting, align the gasket with
swivel fitting, and push in until fully seated. See
Fig. 50.
Fig. 50
[1] Plastic bag
[2] Align gasket
[3] Push in to seat gasket
Subject to change without prior notice
1
3
2
8733819578 (2019/02)
Piping | 19

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