Tranquility THW - 50 & 60Hz R410A - ClimateMaster Geothermal Heat Pumps - Rev.: 30 June, 2008B
15
Figure 9a: Well Water AVMB Valve Wiring
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CAUTION!
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CAUTION!
Many units are installed with a factory or field
supplied manual or electric shut-off valve. DAMAGE WILL
OCCUR if shut-off valve is
closed
during unit operation. A
high pressure switch must be installed on the heat pump side
of any field provided shut-off valves and connected to the
heat pump controls in series with the built-in refrigerant circuit
high pressure switch to disable compressor operation if water
pressure exceeds pressure switch setting. The field installed
high pressure switch shall have a cut-out pressure of 235 psig
[1620 kPa] and a cut-in pressure of 190 psig [1310 kPa]. This
pressure switch can be ordered from ClimateMaster with a 1/4”
internal flare connection as part number 39B0005N01.
ELECTRICAL - LOW VOLTAgE
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CAUTION!
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CAUTION! Refrigerant pressure activated water regulating
valves should never be used with ClimateMaster equipment.
Figure 9b: Taco SBV Valve Wiring
R
CXM Board*
MPC*
Y
1
2
3
Y1
AVMB
Taco Valve
Heater
Switch
*Valve must be wired in between the CXM and MPC boards. Remove the yellow
wire from the CXM board and connect it to terminal 2 on the valve. Add a new
wire from terminal 3 to the Y terminal at the CXM board, and a jumper wire from
terminal 1 to terminal R at the CXM board as shown above.
*Valve must be wired in between the CXM and MPC boards. Remove the yellow
wire from the CXM board and connect it to the w/y terminal on the valve. Add a
new wire from the end switch (bottom connection) to the the Y terminal at the
CXM board, and a jumper wire from the w/y terminal to the other side (top
connection) of the end switch as shown above.
Taco SBV Valve
Y1
MPC*
C
CXM
Board
Y*
