McQuay M5ACV 030 CR

8. Appendix
37
General Unit Default Min Max Resolution
Model Flag4 021
0=Chiller (Chiller+Boiler)
1=Heat pump,
2=Chiller/ Boiler,
3=Heat pump/ Boiler, 4=Chiller+Boiler
5=Heat pump+Boiller
Number of compressor Flag 1 1 4 1
1=1 compressor,
2=2 compressor,
3=3 compressor,
4=4 compressor
On/Off input Flag 0 (disable) 0 1 1
0=disable, 1=enable
Coo/ Heat input Flag 0 (disable) 0 1 1
0=disable, 1=enable
External alarm input Flag 0 (disable) 0 1 1
0=disable, 1=enable
Water system for chiller network Flag 0 (disable) 0 1 1
0=independent, 1=modular
G7 Unit number Flag 0 0 50 1
G5
G6
G1
G2
G3
G4
REGULATOR Unit Default Min Max Resolution
R1 Cooling set-point °C (F) 12 (53.6) 7(44.6) 20(68) 0.1
R2 Cooling differential °C (F) 1.5* (2.7) 0.4 (0.7) 10 (18) 0.1
R3 Heating set-point °C (F) 40 (104) 30(86) 50(122) 0.1
R4 Heating differential °C (F) 1.5* (2.7) 0.4 (0.7) 10 (18) 0.1
R5 Minimum Cooling set-point °C (F) 7 (44.6) -20 (-4) 20(68) 1
R6 Maximum Cooling set-point °C (F) 20 (68) 7(44.6) 40 (104) 1
R7 Minimum Heating set-point °C (F) 30 (86) -20 (-4) 50(122) 1
R8 Maximum Heating set-point °C (F) 50 (122) 30(86) 90 (194) 1
R9 Auxiliary heater set-point(threshold below °C (F) 5 (9) 0 (0) 40 (72) 0.1
below heating set-point)
R10 Auxiliary heater differential °C (F) 2 (3.6) 0.4 (0.7) 10 (18) 0.1
R11 Auto boiler set-point(threshold below °C (F) 5 (9) 0 (0) 40 (72) 0.1
Heating set-point)
R12 Auto boiler differential °C (F) 2 (3.6) 0.4 (0.7) 10 (18) 0.1
R13 Auto boiler start time threshold min 30 0 199 1
COMPRESSOR Unit Default Min Max Resolution
C1 Compressor minimum run time sec 120 0 1990 10
C2 Compressor minimum stop time sec 180 0 1990 10
C3 Time interval between two starts sec 450 0 1990 10
C4 Start delay between two compressors sec 15 0 199 1
C5
Pump on →compressor on dela
y
sec 180 0 1990 10
C6
Comp off →pump off delay
sec60 0 19910
C7 Discharge cut-off-set-point °C (F) 120(248) 0 (32) 150 (302) 1
CONDENSER DEFROST Unit Default Min Max Resolution
D1 Start defrost temperature °C (F) 0 (32) -20 (-4) 14(57) 1
D2 End defrost temperature °C (F) 14 (57) 0(32) 40 (104) 1
D3 Maximum duration of defrost cycle min 10 1 40 1
D4 Defrost interval time min 45 0 199 1
D5 Delay before defrosting sec 0 0 1990 10
D6 Delay after defrosting sec 120 0 1990 10