Specifications
47
Setpoint function
Setpoints are entered through the keypad. Setpoints can be
changed within the upper and lower limits, which are fixed. The
ranges are listed below.
Cooling setpoint 1,2
Water: 3.3 to 21.1°C
Medium temperature brine: -10 to 21.1°C
Low temperature brine: -25 to 21.1°C
Heating and setpoint 1,2
Water and medium
temperature brine: 26.7 to 60°C
Reset setpoints
Maximum reset range: -17 to 17°C
External temperature reset: -40 to 115°C
Chiller fluid ∆T: 0 to 8°C
External signal reset: 4 to 20 mA
Demand limit setpoints
Switch input: Step 1 – 0 to 100 %
capacity reduction
Step 2 – 0 to 100 %
capacity reduction
External signal: Maximum demand limit:
4 to 20 mA
Minimum demand limit:
4 to 20 mA
Loadshed demand Delta:
0 to 60 %
Maximum loadshed time:
0 to 120 min.
Head pressure setpoints
Air-cooled chillers: 26.7 to 57.2°C
Water-cooled chillers: 26.7 to 53.3°C
SETPOINT
SUBFUNCTION KEYPAD DISPLAY COMMENT
ENTRY
1 Setpoint table <1> <SET> COOLING
<↓> Cool setpoint 1
xx.x °C
<↓> Cool setpoint 2
xx.x °C
<↓> Cooling ramp loading
xx.x °C
<↓> HEATING
<↓> Head setpoint 1
xx.x °C
<↓> Head setpoint 2
xx.x °C
<↓> Heating ramp loading
xx.x °C
<↓> HEAD PRESSURE
<↓> Head pressure setpoint A
xxx.x °C
<↓> Head pressure setpoint B
xxx.x °C
<↓> DEMAND LIMIT
<↓> Demand switch setpoint 1
xxx.x %
<↓> Demand switch setpoint 2
xxx.x %
<↓> LCW delta alarm limit
xxx.x °C
SETPOINT (CONT.)
SUBFUNCTION KEYPAD DISPLAY COMMENT
ENTRY
<↓> Minutes off time
xxx min.
<↓> Motor Temp. setpoint
xxx.x °C
2 Units <2> <SET> US IMPERIAL/METRIC 0 = English
0 1 = Metric
3 Address <3> <SET> TARGET ADDRESS
x
<↓> TARGET BUS NUMBER
x
4 Time <4> <SET> Day of week Mon = 1, Tues = 2
Monday etc.
<3> <ENTER> Day of week Day of week set
Wednesday
<↓> TIME (HOUR:MIN) Enter military
00:00 format
<10.30> TIME (HOUR:MIN) Time of day set
<ENTER> 10:30
<↓> DAY OF MONTH
xx
<20> <ENTER> DAY OF MONTH Day of month set
20
<↓> MONTH OF YEAR
xx
<05> <ENTER> MONTH OF YEAR Month of year set
05
<↓> YEAR OF CENTURY
xx
<96> <ENTER> YEAR OF CENTURY Year of century set
96
5 Disable <5> <SET> Disable CCN control 0 = no, 1 = yes