Adjusting Water Pressure Switch; Electrical; Electrical Requirements - Aquacal HeatWave SuperQuiet SQ120R Installation Manual

3.3.i Adjusting Water Pressure Switch
Adjust water pressure switch when heat pump attempts to operate without water flow.
WARNING - Failure to heed the following may result in injury or death.
Water Pressure Switch adjustment procedure to be performed by experienced service personnel only; procedure
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must not be attempted by individuals lacking adequate electrical and mechanical experience.
CAUTION - Failure to heed the following may result in equipment damage.
If after water pressure switch adjustment the heat pump continues to operate with the filter pump off, readjust
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water pressure switch to ensure heat pump will not run without water flow.
Confirm the following before attempting any adjustments:
The filter is clean.
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Filter pump is operating.
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Valves are set to direct appropriate amount of water through the heat pump. See "Water Flow Rates" on page 6.
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FLO code is displayed (or displays intermittently).
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Adjusting Water Pressure Switch:

1. Remove heat pump access panel. See "Access Panels"
on page 16.
2. Locate the water pressure switch. It will be outside and
along the bottom edge of the electrical enclosure. Exact
location varies by model.
3. Activate filter pump.
4. Apply power to heat pump.
5. Slowly rotate adjustment wheel on switch until the FLO
code just disappears.
6. Deactivate filter pump. If correctly adjusted, the heat
pump will deactivate and display FLO .
7. Re-install heat pump access panel.
If heat pump continues to operate without water flow, contact AquaCal
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Site-specific factors may require the installation of an external flow switch. See "Available
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Accessories" on page 40.

3.4 Electrical

3.4.a Electrical Requirements
WARNING - Failure to heed the following may result in injury or death.
The information contained in this section is intended for use by qualified electricians familiar with electrical
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service-industry safety standards and methods.
Locate the equipment disconnect as near to the heat pump as possible. Always satisfy applicable codes and
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standards.
Never mount power-disconnects directly to the heat pump.
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In sizing power wiring, be especially aware of up-sizing requirements necessary due to wiring distances. Always
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satisfy applicable codes and standards.
Multiple heat pumps installed at the same site may benefit from automatic sequencing controllers (ASC) to
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avoid excessive power drops at start-up. See "Available Accessories" on page 40.
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AquaCal heat pumps are designed to use copper conductors, only. Do not use aluminum wire.
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Technical Support.
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