Carrier AquaForce PUREtec 61XWHLZE 03 - Application Data; Operating Limits; Minimum Chilled Water Flow; Maximum Chilled Water Flow

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6 - APPLICATION DATA
6.1 - Operating limits
6.1.1 - 61XWHLZE / 61XWH-ZE units
61XWHZ-E Minimum Maximum
Evaporator
Entering temperature at start-up - Up to 35,0°C
Leaving temperature during operation 3,3°C
(1)
Up to 25,0°C
Condenser
Entering temperature at start-up 13,0°C
(2)
-
Leaving temperature during operation 35,0°C
(2)
Up to 85,0°C
(3)
(1) Use of antifreeze protection is required if the leaving temperature is below 3.3°C
(61XWHLZE range).
(2) For lower condenser temperatures a water ow control valve must be used at
the condenser (two or three-way valve). Please refer to option 152 to ensure
the correct condensing temperature.
(3) Limited to 75°C for model 17
6.1.2 - 61XWHHZE units
Only models 3, 5, 7, 10, 15
61XWHHZE Minimum Maximum
Evaporator
Entering temperature at start-up - Up to 60,0°C
Leaving temperature during operation 20,0°C Up to 55,0°C
Condenser
Entering temperature at start-up 13,0°C
(1)
-
Leaving temperature during operation 35,0°C
(1)
Up to 85°C
(1) For lower condenser temperatures a water ow control valve must be used at
the condenser (two or three-way valve). Please refer to option 152 to ensure
the correct condensing temperature.
Note: Ambient temperatures: During storage and transport
(including by container) the minimum and maximum
permissible temperatures are -20°C and 70°C.
6.2 - Minimum chilled water ow
The minimum chilled water ow is shown in the table in chapter 7.6.
If the system ow is less than the minimum unit ow rate, the
evaporator ow can be recirculated, as shown in the diagram.
For minimum chiller ow rate
1
2
Legend
1 Evaporator
2 Recirculation
6.3 - Maximum chilled water ow
The maximum chilled water flow is limited by the permitted
pressure drop in the evaporator. It is provided in the table in chapter
7.6.
Bypass the evaporator as shown in the diagram to obtain a lower
evaporator ow rate.
For maximum chiller ow rate
Legend
1 Evaporator
2 Recirculation
1
2
6.4 - Condenser water ow rate
The minimum and maximum condenser water ow rates are shown
in the table in chapter 7.6.
6.5 - Standard and optional number of water
passes
The unit is equipped of two passes on evaporator and on
condenser.
61XWH
Model 3 5 7 10 14 15 17
Evaporator
Standard unit 2 2 2 2 2 2 2
Unit with option 100A 3 3 3 3 3 3 3
Unit with option 100C 1 1 1 1 1 1 1
Condenser
Standard unit 2 2 2 2 2 2 2
Unit with option 102A 3 3 3 3 3 3 3
Unit with option 102C 1 1 1 1 1 1 1
6.6 - Evaporator and condenser water ow rates
Units 61XWH
Model 3 5 7 10 14 15 17
Evaporator water ow rate, l/s
Minimum 4 6 8 11 13 13 13
Maximum 39 57 76 84 116 116 116
Condenser water ow rate, l/s
Minimum 4 6 8 12 18 14 14
Maximum 29 55 74 119 130 134 134
Notes :
- Minimum evaporator ow rate based on a water velocity
of 0,3 m/s.
- Minimum condenser ow rate based on a water velocity
of 0,3 m/s.
- Maximum ow rate based on a pressure drop of 120 kPa.
- These values are given for standard units. For options
100A, 100C, 102A and 102C, please refer to the unit
selection program.