ClimateMaster Tranquility 30 Digital TE Series Installation, Operation & Maintenance Instructions Manual page 19

Multiple Units with Internal Flow Controllers and Common Flushing Ports
Figure 16b: Multiple Units with Internal Flow Controllers and External Flushing Valves
Size for Heat Pump
'A' Flow
Heat Pump
A
Water Out
Water In
Multiple Units with Internal Modulating Valves and Central Pump
This is an application where multiple units are used in conjunction with a central, variable speed pump. In this case, units with
closed loop modulating valves are used (do not use open loop modulating valves on a closed loop system). External flushing
valves are required. This application is for larger systems, including commercial.
Before flushing, the installer should manually open all modulating valves as detailed in Closed Loop – External Central
Pumping section of this manual. Next, flush the ground loop. The installer should close a pump isolation valve and open the
ground loop shut-off valve to prevent flow through the indoor loop while flushing the ground loop.
Once the ground loop is flushed, close the ground loop shut-off valve and open the pump isolation valve to flush the units
and indoor piping. Once the system is flushed remember to return the modulating valves to their normal operating position.
Multiple Units with Internal Modulating Valves and Central Pump
Figure 16c: Multiple Units with Internal Modulating Valves and Central Pump
Size for Heat Pump
'A' Flow
Heat Pump
Water Out
Water In
Tranquility
®
Size for 'A' + 'B' Flow
Heat Pump
B
Size for
Heat Pump
'B' Flow
Water Out
Water In
Size for 'A' + 'B' Flow
Heat Pump
Size for
Heat Pump
'B' Flow
Water Out
Water In
c l i m a t e m a s t e r . c o m
30 Digital ( TE) Series IOM - 60Hz HFC-410A
Multiple Unit Piping and Flushing
Size for 'A' + 'B' + 'C' Flow
Indoor Loop
Shut-Off Valve
Heat Pump
C
Water Out
Water In
Size for 'A' + 'B' + 'C' Flow
Heat Pump
Heat Pump
Water Out
Water In
R e v . : O c t o b e r 5 , 2 0 2 1
Ground Loop
Shut-Off Valve
To Ground
Loop
Flush
Valve
Size for
Heat Pump
'C' Flow
Ground Loop
Shut-Off Valve
Exp
Pump
Tank Flush
Valve
Pump
Isolation
Valves
Size for
'C' Flow
To Ground
Loop
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