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Table 9.
Water-to-water heat exchanger connections
Attachment Point
Fitting(s) Required
Pump outlet
• 90° elbow, 3/4 NPTE x 3/4 male JIC
AFD panel outlet
• 90° elbow, 3/4 NPTE x 3/4 male JIC
AFD panel inlet
• 90° elbow, 3/4 NPTE x 3/4 male JIC
Heat exchanger inlet
• 90° elbow, 3/4 NPTE x 3/4 male JIC
Heat Exchanger outlet
(top right of Heat Exchanger)
• Adapter, 3/4 NPTI x 3/4 male JIC
• Elbow, 45°, 3/4 female JIC x 3/4 male
JIC
Control valve inlet or HX inlet
(bottom right of bulkhead)
• Elbow, 45°, 3/4 NPTE x 3/4 male JIC
Evaporator or condenser high
side
(assumes using 1/2-in. tapped
connection)
• Adapter, 3/4 FTG x 1/2 NPTE
• Ball valve, 3/4 copper to copper
• Adapter, 3/4 FTG x 3/4NPTE
• Strainer, 3/4 NPTI x 3/4 NPTI w/ 1/4
drain.
• 45° elbow, 3/4 NPTE x 3/4 male JIC
Evaporator or condenser low
side
(assumes using 1/2-in. tapped
connection)
• Adapter, 3/4 FTG x 1/2 NPTE
• Ball valve, 3/4 copper to copper
• Adapter, 3/4 FTG x 3/4 NPTI
• 45° elbow, 3/4 NPTE x 3/4 male JIC
Plumbing
30
AFDK-SVU01C-EN
4. Connect power leads to main disconnect (refer to
for power connection location). Wiring
should match power requirements on the assembly
nameplate in accordance with local codes (refer to
).
Table 10. Heat exchanger power requirements
Heat Exchanger
FLA
Volts/Phase/Hz
020600880100
10 A
115/1/60
020600890100
10 A
115/1/60
5. Wire the customer remote contact connection to the
pump control relay in the drive enclosure. This
connection gives the drive control of the cooling
assembly (refer to
“Standard Control Wiring,” p. 38
for AFDK termination location and requirements).
6. Fill the reservoir tank through the manual fill port to a
level between the two black indicators on the sight
glass. The process fluid in the primary cooling loop
should be distilled water treated with an inhibitor
solution. The secondary water loop may be filled with
condenser water. For a more detailed description of
process fluids including addition of inhibitor solution,
refer to
7. Turn the control switch to “on” position. The
circulating pump should begin rotation.
8. Continue circulating pump for five minutes to allow air
in system to be vented.
9. Ensure all process fluid lines and shutoff valves are
open and the system is able to flow freely. Re-check the
fluid level in the system before continuing with the
startup and note start-up pressure on fluid ports as a
baseline.