Operating instructions

155
APPENDIX C — CCN TABLES (cont)
SERVICE CONFIGURATION TABLES (cont)
*Not supported.
*Not supported. Must be configured at default.
†Default superheat setpoint for DX cooler unit see table below:
NOTE: This table shall be downloadable at any time. However, modified value
shall not be used by tasks until the unit is in OFF state. This shall not apply to
the Varifan gains that shall be modified at any time and used immediately by
the head pressure control tasks even if the unit is in operation.
TABLE DISPLAY NAME RANGE DEFAULT UNITS POINT NAME WRITE STATUS
MAINTCFG MAINTENANCE CONFIG
Servicing Alert Enable/Disable Disable s_alert
Refrigerant Charge Ctrl Enable/Disable Disable charge_c
Water Loop Control Enable/Disable Disable wloop_c
CPump 1 Ctl Delay (days) 0-1000 0 cpump1_c
CPump 2 Ctl Delay (days) 0-1000 0 cpump2_c
HPump 1 Ctrl Delay (days)* 0-1000 0 hpump1_c
HPump 2 Ctrl Delay (days)* 0-1000 0 hpump2_c
Water Filter Ctrl (days) 0-1000 0 wfilte_c
Oil Filter A Ctrl (days) 0 to 1000 0 oilfia_c
Oil Filter B Ctrl (days) 0 to 1000 0 oilfib_c
Oil Filter C Ctrl (days) 0 to 1000 0 oilfic_c
TABLE DISPLAY NAME RANGE DEFAULT UNITS POINT NAME WRITE STATUS
SERVICE1 Cooler Fluid Type 1/2
1=Water
2=Brine
1 flui_typ
Flow Switch SP* 0-60 1 flow_sp
Brine Freeze Setpoint –20.0-34.0 34 °F freezesp
Brine Minimum Fluid Temp 10.0-34.0 38 °F mini_lwt
Condenser Fluid Type* 1/2
1=Water
2=Brine
1 cond_typ
Entering Fluid Control Yes/No No ewt_opt
Prop PID Gain Varifan –20.0-20.0 2.0 hd_pg
Int PID Gain Varifan –5.0-5.0 0.2 hd_ig
Deri PID Gain Varifan –20.0-20.0 0.4 hd_dg
Maximum Ducted Fan Speed* 20-100 100 % fan_max
EXV A Superheat Setpoint 7.2-44 14.4† ^F sh_sp_a
EXV B Superheat Setpoint 7.2-44 14.4† ^F sh_sp_b
EXV C Superheat Setpoint 7.2-44 14.4 ^F sh_sp_c
Pinch offset circuit A –5.4-5.4 0 ^F p_ofst_a
Pinch offset circuit B –5.4-5.4 0 ^F p_ofst_b
Pinch offset circuit C –5.4-5.4 –3.6 ^F p_ofst_c
EXV MOP Setpoint 40-55 62 °F mop_sp
High Pressure Threshold 200-290 275.5 psi hp_th
Cooler Heater Delta Spt 1-6 2 ^F heatersp
Auto Start When SM Lost Enable/Disable Disable auto_sm
3way Valve Min Position* 0-50 0 % min_3w
3way Valve Max Position* 20-100 100 % max_3w
Economizer SH Setpoint A 5-15 10.8 ^F esh_sp_a
Economizer SH Setpoint B 5-15 10.8 ^F esh_sp_b
Economizer SH Setpoint C 5-15 10.8 ^F esh_sp_c
Fast Loading Sequence 0-4 0 fastload
EWT Probe on Cir A Side Yes/No Yes ewt_cirA
Current Offset Cir A 0 amps cur_offA
Current Offset Cir B 0 amps cur_offB
Current Offset Cir C 0 amps cur_offC
SUPERHEAT SETPOINT FOR DX COOLER
FLUID CKT.
UNIT SIZE
082-242 262-302 327-352
Water
LWT 40 F
A151010
B151510
Brine
LWT < 40 F
A252020
B252520