c l i m a t e m a s t e r.c o m
11
Tranquility
®
Large Water-to-Water (TMW) Series
R e v. : O c t o b e r 5 , 2 0 2 1
T H E S M A R T S O L U T I O N F O R E N E R G Y E F F I C I E N C Y
Water-Loop Heat Pump Applications
Hose
Unions
ABS30060-
Basket Strainer
(3”- 60 mesh)
Flow from
Source
Flow to
Source
2” (360)
2.5” (600)
AHK
Hose Kit (1)
Pressure taps
with shutoff
valves and gages
Out
In
TMW
Front
(No Scale)
Revision A Models Only
60”
ADPS (1) KIT
Differential Pressure
Sensor Kit
(Wire to LVTB2 13, 14, 17)
Note: Rev B ADPS Factory installed and wired internal
Commercial systems typically include a number of units
plumbed to a common piping system. Any unit plumbing
maintenance work can introduce air into the piping system,
therefore air elimination equipment is a major portion
of the mechanical room plumbing. In piping systems
expected to utilize water temperatures below 50°F [10°C],
1/2" [13mm] closed cell insulation is required on all piping
surfaces to eliminate condensation. Metal to plastic
threaded joints should never be employed due to their
tendency to leak over time. Teflon tape thread sealant is
recommended for NPT water connections (commercial
class) to minimize internal fouling of the heat exchanger.
Do not overtighten connections and route piping so as not
to interfere with service or maintenance access. Hose kits
are available from ClimateMaster for connection between
the TMW Series and the piping system. The piping system
should be flushed to remove dirt, piping chips, and other
foreign material prior to operation. See Piping System
Cleaning and Flushing Procedures later in this document.
The flow rate is usually set between 2.25 gpm and 3 gpm
per ton [2.9 l/m and 4.5 l/m per kW] of cooling capacity.
ClimateMaster recommends 2.5 gpm per ton [3.2 l/m per
kW] for most applications of water loop heat pumps. To
insure proper maintenance and servicing, P/T ports are
imperative for temperature and flow verification, as well as
performance checks.
Cooling Tower/Boiler Systems typically utilize a
common loop maintained 60-90°F [16-32°C]. The use
of a closed circuit evaporative cooling tower with a
secondary heat exchanger between the tower and the
water loop is recommended. If an open type cooling
tower is used continuously, chemical treatment and
filtering will be necessary.
Figure 4: Source Water System (Not all components of system shown. See engineering specifications and drawings).
