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APPENDIX C — CCN TABLES (cont)
MAINTENANCE DISPLAY TABLES (cont)
*Always CCN for the slave chiller.
†Slave chiller chillstat value
**This decision is consistent for master chiller only. It shall be set by default to 0 for the slave chiller.
††This item is true when chiller has loaded its total available capacity tonnage.
NOTE: Table for display only. Used for Cooling and Heat Pump Compressor Envelope.
TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS
MSTSLAVE MASTER/SLAVE CONTROL
Unit is Master or Slave Disable/Master/Slave mstslv
Master Control Type* Local/Remote/CCN ms_ctrl
Master/Slave Ctrl Active True/False ms_activ
Lead Unit is the: Master/Slave lead_sel
Slave Chiller State† 0=Chiller is off
1=Valid Run State in
CCN Mode
2=Unused for this control
3=Chiller is in local mode
4=Power fail restart in
progress
5=Shudown due to fault
6=Communication failure
slv_stat
Slave Chiller Total Cap 0-100 % slv_capt
Lag Start Delay** 1-30 minutes l_strt_d
Lead/Lag Hours Delta* ±nnnnn hours ll_hr_d
Lead/Lag Changeover?** Yes/No ll_chang
Lead Pulldown? Yes/No ll_pull
Master/Slave Error nn ms_error
Max Available Capacity?†† True/False cap_max
Slave Lagstat 0=Unit not configured
as a slave chiller
1=Slave pump
configuration error
(ms_error=1)
2=Unit configured as
slave chiller with
lwt_opt=no (entering
water control) with
pump control
(lag_pump=0)
3=Unit configured as slave
chiller with lwt_opt=yes
(leaving water control)
with pump control
(lag_pump=0)
4=Unit Configured as slave
chiller with lwt_opt=no
(entering water control)
with no pump control
(lag_pump=1)
5=Unit configured as slave
chiller with lwt_opt=yes
(leaving water control)
with no pump control
(lag_pump=1)
lagstat
TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS
OCCMAINT Current Mode (1=occup.) 0/1 MODE
Current Occp Period # 1 to 8 PER_NO
Timed-Override in Effect Yes/No OVERLAST
Timed-Override Duration 0-4 hours OVR_HRS
Current Occupied Time 00:00-23:59 STRTTIME
Current Unoccupied Time 00:00-23:59 ENDTIME
Next Occupied Day Mon-Sun NXTOCDAY
Next Occupied Time 00:00-23:59 NXTOCTIM
Next Unoccupied Day Mon-Sun NXTUNDAY
Next Unoccupied Time 00:00-23:59 NXTUNTIM
Prev Unoccupied Day Mon-Sun PRVUNDAY
Prev Unoccupied Time 00:00-23:59 PRVUNTIM
TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS
PR_LIMIT Discharge A Temp Average ±nnn.n °F sdt_m_a
Discharge A Temp Rate ±nnn.n ^F sdt_mr_a
Discharge A Gas Limit ±nnn.n °F sdtlim_a
Suction A Temp Average ±nnn.n °F sst_m_a
Discharge B Temp Average ±nnn.n °F sdt_m_b
Discharge B Temp Rate ±nnn.n ^F sdt_mr_b
Discharge B Gas Limit ±nnn.n °F sdtlim_b
Suction B Temp Average ±nnn.n °F sst_m_b
Discharge C Temp Average ±nnn.n °F sdt_m_c
Discharge C Temp Rate ±nnn.n ^F sdt_mr_c
Discharge C Gas Limit ±nnn.n °F sdtlim_c
Suction C Temp Average ±nnn.n °F sst_m_c
TABLE DISPLAY NAME RANGE UNITS POINT NAME WRITE STATUS
SERMAINT Reset Maintenance Alert
1 to 11: reset individually
12: reset all
nn S_RESET forcible
OPERATION WARNINGS
1 — Refrigerant Charge Normal/Low/Disable charge_m
2 — Water Loop Size Normal/Low/Disable wloop_m
GENERAL SERVICING DELAYS
3 — Cooler Pump 1 (days) 0-1000/Alert/Disable cpump1_m
4 — Cooler Pump 2 (days) 0-1000/Alert/Disable cpump2_m
5 — Condenser Pump 1 (days) 0-1000/Alert hpump1_m
6 — Condenser Pump 2 (days) 0-1000/Alert hpump2_m
7 — Water Filter (days) 0-1000/Alert/Disable wfilte_m
8 — Cp A Oil Filter (days) 0-1000/Alert oilfa_m
9 — Cp B Oil Filter (days) 0-1000/alert oilfilb_m
10 — CP.C Oil Filter (days) 0-1000/Alert oilfic_m