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13
c l i m a t e m a s t e r. c o m
Tranquility
®
30 Digital (TE) Series IOM - 60Hz HFC-410A
R e v. : 2 9 M a y, 2 0 1 5 J
Flushing the Earth Loop
Figure 15a: Valve Position A - Loop Fill/Flush
Loop
Out
In
Valve Position
Figure 14a: Typical Cleanable Flush
Cart Strainer (100 mesh [0.149mm])
Figure 14b: Cam Fittings for Flush Cart Hoses
Attach
to Flow
Controller
Flush Port
Connect
to Flush
Cart Hose
(1 of 2)
Flush Port
Front of Unit
Valve Position
WARNING!
WARNING!
Disconnect electrical power source to prevent
injury or death from electrical shock.
Table 1: Minimum Flow Required to Achieve 2 ft/sec Variety
Once piping is completed between the unit and the ground
loop,
fi
nal purging and charging of the loop is needed.
A
fl
ush cart (at least a 1.5 hp [1.1kW] pump) is needed
to achieve adequate
fl
ow velocity in the loop to purge air
and dirt particles from the loop itself. Antifreeze solution is
used in most areas to prevent freezing. All air and debris
must be removed from the earth loop piping system before
operation,
Flush the loop with a high volume of water at
a high velocity (2 fps [0.6 m/s] in all piping)
, using a
fi
lter
in the loop return line, of the
fl
ush cart to eliminate debris
from the loop system. See Table 1 for
fl
ow rate required to
attain 2fps [0.6 m/s]. The steps below must be followed for
proper
fl
ushing.
Units with internal variable speed pumps also include a
check valve internal to the pump. It is not possible to
fl
ush
backwards through this pump. Care must be taken to
connect the
fl
ush cart hoses so that the
fl
ush cart discharge is
connected to the “water in”
fl
ushing valve of the heat pump.
Loop Fill
Fill loop (valve position A, see Figure 15a) with water from a
garden hose through
fl
ush cart before using
fl
ush cart pump
to ensure an even
fi
ll and increase
fl
ushing speed. When
water consistently returns back to the
fl
ush reservoir, switch
to valve position B (
fi
gure 15b).
Isolate expansion tank for
fl
ushing procedure using the ball
valve. During dead heading of
fl
ush cart pump, isolation will
prevent compression of bladder in the expansion tank and
fl
ush cart
fl
uid level dropping below available capacity.
NOTICE:
A hydrostatic pressure test is required on ALL piping,
especially underground piping before
fi
nal back
fi
ll per IGSHPA
and the pipe manufacturers recommendations.
PE Pipe Size
Flow (GPM)
3/4"
4
1"
6
1 1/4"
10
1 1/2"
13
2"
21
Содержание Tranquility 30 TE026
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