Heat Pump Unit Installation - Sanden GAUS-315EQTD Installation Manual

Figure 4: Restrictions on installation between the tank unit and the heat pump unit
>24" or 600mm
(Maintenance Space)
Maximum pipe length 50ft per line
between Tank & Heat Pump Unit
Maximum number of bends – 6,
use long radius bends not street
"L's"

Heat Pump Unit Installation


The surface to which the heat pump unit is installed must be firm, preferably a concrete
pad or block. If the surface is firm there is no need to fix the unit to a base surface,
unless there is a likelihood of high wind or local vibration.
If the heat pump unit and tank unit are to fixed, appropriate fixing devices for the
weight/expected duty should be used.
Note: For California installation this water heater must be braced, anchored,
or strapped to avoid falling or moving during an earthquake.
Note : For Florida installation the Heat Pump unit should be installed in accordance with
all local codes regarding Hurricane winds.
Use appropriately treated lumber or pre fabricated "pump ups" to raise the Heat Pump

unit 4"-6" from the ground – this will allow defrost condensate to drain.

A pressure and temperature relief (PR) valve is included in the installation kit of the tank
unit. This is installed in a defined point near the top of the tank unit. The PR valve must
have a clear drainage where escaping steam or water can flow freely.

The installation site must be well drained so that any water accumulating (such as rain
or pipe leakage) will drain away and not enter the heat pump unit and the tank unit.

Supply water pressure must be a minimum of 29 PSI (200 kPa) to ensure Heat Pump
unit operation – If pressure is below 29 PSI install a booster pump to water supply.
Note: The entire system is set up and fully functional when supplied. Once all the water and
electric connections have been made the system will operate automatically provided that
mains power is available.
Sanden Heat Pump – Installation Manual
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