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www.DaikinApplied.com 41
IM 1137-4 • TEMPLIFIER
®
MODEL TGZ
Table 27: TGZ Temperature Limits
Table 28: TGZ Flow Limits
NOTE:
ELWT=Evaporator Leaving Water Temperature, CLWT=Condenser Water Leaving Temperature.
Compressor POE Oil
The oil level should be watched carefully upon initial start-up
and for sometime thereafter. Compressor oil must be one of
the following: Copeland brand Ultra 22 CC, Copeland brand
Ultra 32 CC, Copeland brand Ultra 32-3MAF, Mobil EAL Artic
22 CC, or Uniqema RL32-3MAF.
This is synthetic polyolester oil with anti-wear additives and is
highly hygroscopic. Care must be taken to minimize exposure
of the oil to air when charging oil into the system. Oil can
be added to the compressor through the oil fill hole on the
compressor. To add oil, pump in the necessary oil.
Sightglass and Moisture Indicator
A clear glass of liquid indicates that there may be an adequate
refrigerant charge in the system to provide proper feed through
the expansion valve. Bubbling refrigerant in the sightglass
indicates that the system is short of refrigerant charge.
Refrigerant gas flashing in the sightglass could also indicate
an excessive pressure drop in the line, possibly due to a
clogged filter-drier or a restriction elsewhere in the system. An
element inside the sightglass indicates what moisture condition
corresponds to a given element color. If the sightglass does
not indicate a dry condition after about 12 hours of operation,
the oil should be tested for acid and the filter-driers changed if
necessary.
Unit Nominal Tons
40
50
60
80
100
110
120
150
170
190
Evaporator GPM Range
10 F Water Temp Delta-T, 65ELWT/130CLWT
72
100
121
162
189
218
246
283
326
369
16-6 Water Temp Delta-T, 65ELWT/130LWT
45 - 120 62 - 167 75 - 202 101 - 270 118 - 315 136 - 363 154 - 410 177 - 472 204 - 543 231 - 615
10 Water Temp Delta-T, Full Unit Range
34 - 120 45 - 167 55 - 202 83 - 270 98 - 315 113 - 363 128 - 410 147 - 472 169 - 543 192 - 615
Condenser GPM Range - 4 Pass Cond
20 F Water Temp Delta-T, 65ELWT/130CLWT
47
64
77
103
120
138
156
180
207
234
40-15 F Water Temp Delta-T, 65ELWT/130CLWT
23 - 63
32 - 86 38 - 103 51 - 138
60 - 160 69 - 184 78 - 208 90 - 240
103 - 276 117 - 312
Condenser GPM Range - 2 Pass Cond
10 F Water Temp Delta-T, 65ELWT/130CLWT
94
128
154
206
240
276
312
360
414
468
15 F Water Temp Delta-T, 65ELWT/130CLWT
63
85
103
137
160
184
208
240
276
312
Cooling Cycle
Min .
Temp
Max
Temp
Note:
Evaporator Leaving Water Temp.
40
°
F 60° F
In Cooling Cycle controlling Evap LWT - The Maximum Setpoint temp is 60°F
Condenser Leaving Water Temp
70° F 160° F
With Evap LWT above 50°F, the Cond LWT must be 30°F above Evap. LWT
Evaporator Water Delta-T
6° F
16° F
With Glycol in Evap - Evap LWT
15° F 60° F With Evap LWT below 40°F, the Cond EWT must not exceed 120°F above the Evap LWT.
Heating Cycle
Evaporator Leaving Water Temp
40° F 85° F
With Evap LWT above 70°F, the Cond LWT must be 30°F above Evap LWT
Condenser Leaving Water Temp
110° F 160° F
Evaporator Water Delta-T
6° F
16° F
Condenser Water Delta - T
with 2 Pass Condenser Water Flow 10° F 15° F Cond Water Temp Delta-T should be 10°F minimum for good condenser liquid subcooling
with 4 Pass Condenser Water Flow 15° F 40° F