Aquacal HP7 Operating/Service Instructions Manual page 24

WARNING !!!! Dealer & Service Center Use Only
SPA Return Line Installation
1. Disconnect power to the AquaCal Heater.
2. Remove front access panel and the electric box cover (if equipped) on the heater.
3. String the flow switches cable through an access hole in the side of the heater and into
the electric box.
4. Locate the Microprocessor Power Board inside the electric box. (see figure2)
5. Connect the cable with female quick disconnects already attached to the terminals
marked FS2 A and B on the Microprocessor Power Board. (see figure 2)
6. Install the flow switch in the spa return line.
7. Remove the cover from the flow switch. Disconnect the wire from the NC (normally
closed) terminal, and connect to the NO (normally open) terminal. (see figure 2) Replace
the cover on the flow switch.
8. The flow switch installation is complete.
9. Replace the access electric box cover, and the front access panel. Connect power to the
heater.
10. For programming instructions, refer to document entitled: Operating & Service
Instructions for AquaCal HP7 Microprocessor Controller.
FLOW SWITCH
INSTALLED IN POOL
RETURN LINE
FIGURE 1
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