Carrier 23xl Start-Up, Operation And Maintenance Instructions Manual page 36

To access this display from the CVC default screen:
1. Press .
MENU
2. Press .
SERVICE
3. Scroll down to highlight EQUIPMENT SERVICE
4. Press SELECT .
5. Scroll down to highlight
LEAD/LAG
DESCRIPTION
Lead Lag Control
LEAD/LAG Configuration
DSABLE=0, Lead=1
LAG=2, STANDBY=3
Load Balance Option
Common Sensor Option
LAG % Capacity
LAG Address
LAG START Timer
LAG STOP Timer
PRESTART FAULT Timer
STANDBY Chiller Optioin
STANDBY % Capacity
STANDBY Address
NOTE: No variables are available for CCN read or write operation.
To access this display from the CVC default screen:
1. Press MENU .
2. Press SERVICE .
3. Scroll down to highlight EQUIPMENT SERVICE
4. Press SELECT .
5. Scroll down to highlight RAMP_DEM
DESCRIPTION
Pulldown Ramp Type:
Select: Temp=0, Load=1
Demand Limit + kW Ramp
Demand Limit Source
Select: Amps=0, kW=1
Motor Load Ramp % Min
Demand Limit Prop Band
Demand Limit At 20 mA
20 mA Demand Limit Opt
Motor Rated Kilowatts
Demand Watts Interval
NOTE: No variables are available for CCN read or write operation.
To access this display from the CVC default screen:
1. Press MENU .
2. Press SERVICE .
3. Scroll down to highlight
EQUIPMENT SERVICE
4. Press .
SELECT
5. Scroll down to highlight TMP_CTL
DESCRIPTION
Control Point
ECW Control Option
Temp Pulldown Deg/Min
Temperature Reset
RESET TYPE 1
Degrees Reset At 20 mA
RESET TYPE 2
Remote Temp (No Reset)
Remote Temp (Full Reset)
Degrees Reset
RESET TYPE 3
CHW Delta T (No Reset)
CHW Delta T (Full Reset)
Degrees Reset
Select/Enable Reset Type
Table 3 — CVD Display Data (cont)
EXAMPLE 19 — LEAD/LAG DISPLAY SCREEN
.
.
STATUS
0-3
0/1 DSABLE/ENABLE
0/1 DSABLE/ENABLE
25-75 %
1-236
2-60 MIN
2-60 MIN
2-30 MIN
0/1 DSABLE/ENABLE
25-75 %
1-236
EXAMPLE 20 — RAMP_DEM DISPLAY SCREEN
.
.
STATUS
0/1
0/1
5-20
3-15 %
40-100 %
0/1 DSABLE/ENABLE
50-9999 kW
5-60 MIN
EXAMPLE 21 — TEMP_CTL DISPLAY SCREEN
.
.
STATUS
0/1 DSABLE/ENABLE
2-10 ^F
–30- 30 ^F
–40-245 DEG F
–40-245 DEG F
–30-30 ^F
0-15 ^F
0-15 ^F
–30-30 ^F
0-3
UNITS POINT
leadlag
leadlag
loadbal
commsens
lag_per
lag_add
lagstart
lagstop
preft
stndopt
stnd_per
stnd_add
UNITS POINT
rampslct
dem_src
kw_ramp
dem_app
dem_20ma
dem_sel
motor_kw
dw_int
UNITS POINT
ecw_opt
tmp_ramp
deg_20ma
res_rt
res_rt
deg_rt
restd_1
restd_2
deg_chw
res_sel
36
DEFAULT
0
0
DSABLE
DSABLE
50
92
10
10
5
DSABLE
50
93
DEFAULT
1
0
10
10
40
DSABLE
145
15
DEFAULT
DSABLE
3
10
85
65
10
10
0
5
0