ClimateMaster TMW036 - Piping Installation

CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
Water-to-Water (TMW) Series
Rev.: 04/15/16
10
ClimateMaster Water-Source Heat Pumps
Piping Installation
TMW Unit Load Plumbing - The applications are too
varied to describe in this document. However, some basic
guidelines will be presented. Much of the discussions
on water loop applications would be valid for the load
plumbing discussion as well. All plumbing should
conform to local codes with the following considerations:
Wide temperature variation applications such as
heating/cooling coils:
- Employ piping materials that are rated for the
maximum temperature and pressure combination.
This excludes PVC for most heating applications.
- Insure that load water fl ow in high temperature
heating applications is at least 3 gpm per ton [3.9 l/m
per kW] to improve performance and reduce nuisance
high pressure faults.
- DO NOT employ plastic to metal threaded joints
- Utilize a pressure tank and air separator vent system
to equalize pressure and remove air..
Swimming Pool Hot Tub Applications:
- Load coax should be isolated with secondary heat
exchanger constructed of anti-corrosion material in all
chlorine/bromine fl uid applications.
Potable Water Applications:
- Load coax material should always be vented double
walled for use in potable water systems.
- Insure load water fl ow in high temperature heating
applications is at least 3 gpm per ton to improve
performance and reduce nuissance to high pressure
faults.
LOAD PLUMBING INSTALLATION
Optional pressure-rated hose assemblies designed
specifi cally for use with ClimateMaster units are available.
Similar hoses can be obtained from alternate suppliers.
Supply and return hoses are fi tted with swivel-joint fi ttings
at one end to prevent kinking during installation.
Refer to Figure 1 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.
 CAUTION! 
CAUTION! Corrosive system water requires corrosion
resistant fi ttings and hoses and possibly water treatment.
Figure 2: Typical Water Loop Application
Load Connections
(Hot Water/Chilled Water)
Source Connections
(Boiler/Tower,
Geothermal Loop)
Power Disconnect
Figure 1: Supply/Return Hose Kit
Rib Crimped
Length
(0.6m Length Standard)
Swivel
Brass
Fitting
Brass
Fitting
MPT
MPT
Note: The manufacturer strongly recommends all
piping connections, both internal and external to the
unit, be pressure tested by an appropriate method
prior to any fi nishing of the interior space or before
access to all connections is limited. Test pressure may
not exceed the maximum allowable pressure for the
unit and all components within the water system.
The manufacturer will not be responsible or liable
for damages from water leaks due to inadequate or
lack of a pressurized leak test, or damages caused
by exceeding the maximum pressure rating during
installation.
WARNING! Polyolester Oil, commonly known as POE oil, is
a synthetic oil used in many refrigeration systems including
those with HFC-410A refrigerant. POE oil, if it ever comes
in contact with PVC or CPVC piping, may cause failure of
the PVC/CPVC. PVC/CPVC piping should never be used
as supply or return water piping with water source heat
pump products containing HFC-410A as system failures and
property damage may result.
 WARNING! 