Installation
WSHP-SVX01L-EN 63
7. Verify the control board for the water side economizer
is located at the back of the control box. The
temperature rating of this board is factory set to 55ºF.
For units with boilerless (electric heat) control and
water side economizer, the boilerless control board is
factory set to 45ºF.
8. Thread the bulb and wire through the low voltage hole
of the water-source heat pump. See
Figure 72, p. 63.
9. Wire-tie the sensor to the water SUPPLY side of the
piping (ON, or BEFORE) the 2-position valve. See
Figure 73, p. 63.
10. Bundle excess sensor wire, and wire tie the bundle
neatly. See Figure 74, p. 63.
11. Thread the valve’s wire lead through the low voltage
hole of the heat pump. See Figure 75, p. 63.
12. Wire the valve to the terminal strip according to the
unit wire diagram located on the service control panel.
RED = 1TB1-14
BLK = 1TB1-18
WHT = 1TB1-15
Figure 71. Step 7
Figure 72. Step 8
Figure 73. Step 9
Figure 74. Step 10
Figure 75. Step 11
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