Controlling Irrigation And Rainwater Runoff; Planning For Condensation; Mounting Pad Requirements; Anchoring Heat Pump To Pad - Aquacal AutoPilot WS03 Operation And Installation Manual

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4.2.b Controlling Irrigation and Rainwater Runoff
Avoid placing heat pump in direct rainwater runoff from roofs. If the roof slope directs runoff into the heat
pump, a gutter or rain shield is required on the roof edge above the heat pump. Avoid water spraying onto
the heat pump by re-locating or adjusting irrigation.
4.2.c Planning for Condensation
Insulated evaporator and refrigeration components prevent significant volumes of condensation from
forming inside the unit when operating.
4.2.d Mounting Pad Requirements
 Equipment pad is to be constructed of concrete, or other code-approved materials sufficient to
support the weight of the heat pump.
 Pad is to be elevated to provide adequate drainage to base of heat pump.
 Pad is to be essentially level and extend in all directions (at least) 6" beyond the base of the heat
pump. Under no circumstances should the heat pump be installed directly onto the earth.
 For purposes of sound abatement, equipment base is not to be joined to a building's foundation or
placed directly on concrete floors inside building. For inside installations, vibration dampeners are
recommended between equipment and concrete floor to avoid harmonic drone vibration during
equipment operation.
 Do not place one water source heat pump directly on top of another. A structural metal rack is
required when pumps are "stacked". See local code requirements for rack specifications. Water
source heat pumps may be racked a maximum of two high.
 Equipment pad and racks must meet all requirements of authorities having code-related jurisdiction.
4.2.e Anchoring Heat Pump to Pad
Follow all relevant local, state, or national requirements regarding wind load anchoring. Contact AquaCal
AutoPilot to obtain the correct anchoring kit information. Please have the heat pump model number ready
when contacting AquaCal AutoPilot.

4.3 Plumbing

CAUTION - Failure to heed the following may result in equipment damage.
Plumbing diagrams are provided in this section as a planning guide to the sequence of equipment, valves,
fittings, etc. The basic plumbing configurations for typical installations are shown. If the installation does
not closely follow any of the supplied plumbing diagrams, AquaCal AutoPilot Technical Support is
available for installation advice and guidance.

The heat pump must receive water flow within the specified minimum and maximum ranges and to
maintain ideal water flow through the heat pump under worst-case conditions (i.e.: filter fouled to
10 PSI rise). See page 6 for more information.

Install a bypass valve whenever water flow rate may exceed maximum rating. See "Water Flow
Rates" on page 6 for specific maximum rates. Contact AquaCal AutoPilot Technical Support for
guidance regarding testing for water flow rate.

Temperature / pressure ports with PVC tees and a pocket test thermometer are also provided. This
can be installed between the unions and the bypass valves. The preferred location of port is 6"
from the heat pump union.
o These ports are used for balancing temperature on the water supply and water return for
maximum heat pump performance. See "Adjusting Water Flow using ∆T (Delta-T) on page
7 for more information on using these ports.
Water flow exceeding maximum flow rates may damage heat pump and will not be
covered under equipment warranty.