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
Tranquility
®
Water-to-Water (TMW) Series
R e v. : 0 4 / 1 5 / 1 6
39
c l i m a t e m a s t e r. c o m
Table 6: Water Temperature Change Through Source
Heat Exchanger
Table 7: Coax Water Pressure Drop TMW170/340
Note: Units have a fi ve minute time delay in the
control circuit that can be eliminated on the CXM
PCB as shown in Figure 5. See controls description for
detailed features of the control.
1. Adjust all valves to their full open position. Turn on the
line power to all heat pump units.
2. Operate each unit in the cooling cycle. Loop water
temperature entering the heat pumps should be
between 70°F [21°C] and 110° F [43°C].
3. Operate each heat pump in the heating cycle
immediately after checking cooling cycle operation.
A time delay will prevent the compressor from re-
starting for approximately fi ve (5) minutes.
4. Establish a permanent operating record by logging
the unit operating conditions at initial start-up for
each unit.
5. If a unit fails to operate, conduct the following checks:
a.
Check the voltage and current. They should
comply with the electrical specifi cations
described on the unit nameplate.
b.
Look for wiring errors. Check for loose terminal
screws where wire connections have been
made on both the line and low-voltage terminal
boards.
c.
Check the supply and return piping. They must
be properly connected to the inlet and outlet
connections on the unit.
d.
If the checks described above fail to reveal
the problem and the unit still will not operate,
contact a trained service technician to ensure
proper diagnosis and repair of the equipment.
WARNING!
WARNING!
When the disconnect switch is closed, high
voltage is present in some areas of the electrical panel.
Exercise caution when working with energized equipment.
WARNING!
WARNING!
Verify ALL water controls are open and allow
water fl ow prior to engaging the compressor. Freezing of the
coax or water lines can permanently damage the heat pump.
Model GPM
Pressure Drop PSI (FT)
30°F
50°F
70°F
90°F
Source/Outdoor Coax
340
35
53
70
1.6 (3.7)
4.0 (9.3)
7.2 (16.6)
1.2 (2.7)
3.6 (8.3)
6.5 (15.0)
1.0 (2.3)
3.3 (7.6)
5.9 (13.6)
0.9 (2.0)
3.0 (7.0)
5.5 (12.6)
170
18
27
35
0.8 (1.9)
2.7 (6.3)
4.8 (11.2)
0.4 (1.0)
1.7 (3.9)
3.3 (7.6)
0.2 (0.4)
1.5 (3.4)
3.0 (6.9)
0.1 (0.3)
1.4 (3.1)
2.8 (6.4)
Model
l/s
Pressure Drop kPa
0°C
10°C
20°C
30°C
Source/Outdoor Coax
340
2.21
3.34
4.42
11.03
26.88
48.95
8.27
24.82
44.82
7.22
23.10
41.36
6.29
21.29
38.47
170
1.1
1.67
2.21
4.82
17.92
32.40
2.76
11.72
22.75
1.72
11.38
21.37
.88
9.47
19.30
Water Flow, gpm [l/m]
Rise, Cooling
°F, [°C]
Drop, Heating
°F, [°C]
For Closed Loop: Ground Source or
Closed Loop Systems at 3 gpm per
ton [3.9 l/m per kW]
9 - 12
[5 - 6.7]
4 - 8
[2.2 - 4.4]
For Open Loop: Ground Water
Systems at 1.5 gpm per ton
[2.0 l/m per kW]
20 - 26
[11.1 - 14.4]
10 - 17
[5.6 - 9.4]
Unit Start Up Procedure
Table 8: Coax Water Pressure Drop TMW036-120
Model GPM
Pressure Drop PSI
30°F
50°F
70°F
90°F
Source/Outdoor Coax
036
4.5
6.8
9.0
1.7
4.1
7.1
1.3
3.4
6.0
1.0
2.8
5.1
0.8
2.4
4.5
060
7.5
11.3
15.0
1.5
4.0
6.9
1.3
3.4
6.2
1.1
3.0
5.5
0.9
2.7
5.0
120
15.0
22.5
30.0
1.7
4.4
7.6
1.4
3.8
6.8
1.2
3.3
6.1
0.9
2.7
5.0
Load/Outdoor Coax
036
4.5
6.8
9.0
0.6
1.4
2.6
0.5
1.3
2.4
0.3
1.1
2.2
060
7.5
11.3
15.0
1.4
3.5
6.2
1.3
3.2
5.8
1.2
3.0
5.5
120
15.0
22.5
30.0
1.6
3.8
6.8
1.4
3.5
6.4
1.3
3.3
6.0
Must use antifreeze if operation falls in grey area
Operation not recommded
Multiply PSI x 2.31 to determine ft of hd
