C L I M AT E M A S T E R WAT E R - S O U R C E H E AT P U M P S
Tranquility
®
Large Water-to-Water (TMW) Series
R e v. : O c t o b e r 5 , 2 0 2 1
C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s
10
Load Plumbing Installation
WATER TEMPERATURE REQUIREMENTS
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 must conform to local codes
with the following considerations:
Active portion of loop requires 6 gallons of water per ton of
unit(s) capacity, see figure 3. Must use storage/buffer tank
if needed.
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.
• Ensure that load water flow 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 exchanger should be isolated with secondary heat
exchanger constructed of anti-corrosion material for
chlorine/bromine fluid applications.
Potable Water Applications:
• Load exchanger should be isolated with secondary heat
exchanger.
• Ensure load water flow in high temperature heating
applications is at least 3 gpm per ton to improve
performance and reduce nuissance to high
pressure faults.
Figure 3: Load Water System
(Not all components of system shown. See engineering specifications and drawings)
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
finishing 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.
Cooling Water Temperature -
Unit is designed for a
leaving water temperature range from 40°F to 62°F.
TMW360-840 units can operate safely in this range
without the need of special controls or glycol additives.
Leaving water temperatures below 40°F can result in
TMW
Front
Out
Unions
Hose
Pump
AYS30060 -
Y-Strainer
(3” - 60 mesh)
Bypass Valve
(Not required if
unit has Source MWV)
Backflow
Preventer
Revision A Models Only
60”
Flow to
Load Field
Flow from
Load Field
Pressure Relief
Valve
Manual Isolation
Valves
Active Portion
of Loop
2” (360)
2.5” (600)
AHK
Hose Kit (1)
Pressure taps
with shutoff
valves and gages
In
(No Scale)
ADPS (1) KIT
Differential Pressure Sensor Kit
(Wire to LVTB2 15, 16, 17)
Note: Rev B ADPS Factory installed and wired internal
evaporator suction temperatures below the freezing point
of water. Therefore, a glycol solution additive is required
that will protect the evaporator from freeze ups at lower
operating suction temperatures. The full range of leaving
fluid temperature using glycol is 24°F to 62°F.
