W2W Series Heat Pump
Ecologix Heating Technologies Inc
Page
5
www.ecologix.ca
221 Holiday Inn Drive Cambridge ON
ph: 519-658-4330
Installation
Unit Location
W2W series units are not designed for outdoor
installation. Install the unit in an INDOOR
location that allows enough space for service
personnel to perform typical maintenance or
repairs.
The installation of water source heat pump
units and all components, parts and
accessories that make up the installation shall
be in accordance with the regulations of ALL
authorities having jurisdiction and MUST
conform to all applicable codes. It is the
responsibility of the Installing Contractor to
determine and comply with ALL applicable
codes and regulations.
Locate the unit in an indoor area that allows easy
removal of access panels, and has enough space
for service personnel to perform maintenance or
repair. Provide sufficient room to make water
and electrical connections. Any access panel
screws that would be difficult to remove after the
unit is installed should be removed prior to
setting the unit. These units are not approved for
the outdoor installation and, therefore, must be
installed inside the structure being conditioned.
Do not locate in areas where ambient conditions
are not maintained within 40-100ºF and up to
75% relative humidity.
PIPING INSTALLATION
Installation of Supply and Return
Piping
Follow these piping guidelines.
1. Install a drain valve at the base of each
supply and return riser to facilitate
system flushing.
2. Install shut-off/balancing valves and
unions at each unit to permit unit
removal for servicing.
3. Place strainers at the inlet of each system
circulating pump.
4. Select the proper hose length to allow
slack between connection points. Hoses
may vary in length by +2% to -4%
under pressure.
5. Refer to Table. Do not exceed bend radius
for the hose selected. Exceeding the
minimum bend radius may cause the
hose to collapse, which reduces water
flow rate. Install an angle adapter to
avoid sharp bends in the hose when the
radius falls below the required
minimum.
Table 1: Hose Minimum Bend Radii
Hose Diameter
Minimum Bend Radius
½” [12.7mm]
2½ ” [63.5mm]
¾” [19.1mm]
4” [101.6mm]
1” [25.4mm]
5½” [139.7mm]
1 & 1/4” [31.8mm]
6¾” [171.5mm]
Insulation is not required on loop water piping
except where the piping runs through unheated
areas or outside the building, or when the loop
water temperatures is below the minimum
expected dew point of the pipe ambient.
Insulation is required where loop water
temperature may drop below the ambient air dew
point.
Note: When anti-freeze is used in the loop,
assure that it is compatible with Teflon tape
or pipe joint compound employed.
Optional hose assemblies designed specifically
for use with W2W-series units area available.
Similar hoses can be obtained from alternate
suppliers.
Refer to Hose kit instructions for an illustration
of a Supply/Return Hose Kit. Male adapters
secure hose assemblies to the unit and risers.
Install hose assemblies properly and check them
regularly to avoid system failure and reduced
service life.
Load Plumbing Installation
W2W-Series Unit Load Plumbing
The applications are varied and cannot be
described in their entirety in this document.
However, some basic guidelines will be
presented. Much of the discussions on water
loop applications would be valid for the load