Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual page 33

Hermetic centrifugal liquid chillers with pic iii controls 50/60 hz hfc-134a
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Table 4 -- ICVC Display Data (cont)
EXAMPLE 20 -- LEADLAG DISPLAY SCREEN
To access this display from the ICVC default screen:
1. Press [MENU].
2. Press _.
3. Scroll down to highlight IEQUIPMENT
SERVICE I .
4. Press [SELECT].
5. Scroll down to highlight ILEADLAG
I.
6. Press [SEL_T].
DESCRIPTION
Lead Lag Control
LEAD/LAG: Configuration
DSABLE=0,
Lead=l
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 Option
STANDBY % Capacity
STANDBY Address
STATUS
0-3
0/1
0/1
25-75
1-236
2-60
2-60
2-30
0/1
25-75
1-236
UNITS
DSABLE/ENABLE
DSABLE/ENABLE
%
MIN
MIN
MIN
DSABLE/ENABLE
%
POINT
leadlag
Ioadbal
commsens
lag_per
lagadd
lagstart
lagstop
preflt
stndopt
stnd_per
stnd_add
NOTE: No variables are available for CCN read or write operation.
EXAMPLE 21 -- RAMP
DEM DISPLAY SCREEN
To access this display from the IOVC default screen:
1. Press [MENO].
2. Press _.
3. Scroll down to highlight IEQUIPMENT
SERVICE I .
4. Press [SELECT].
5. Scroll down to highlight IRAMP
DEM I .
6. Press [S_E_].
DESCRIPTION
Pulldown Ramp Type:
Select: Temp=0, Load=l
Demand Limit and kW Ramp
Demand Limit Source
Select: Amps=0, kW=l
Amps or Kw Ramp%/Min
Demand Limit Prop Band
Demand Limit At 20 mA
20 mA Demand Limit Opt
Demand Watts Interval
DEFAULT
o
DSABLE
DSABLE
5O
92
10
10
5
DSABLE
5O
93
STATUS
UNITS
DEFAULT
0/1
1
%
%
DSABLE/ENABLE
MIN
POINT
rampslct
dem_src
kw ramp
dem_app
dem_20ma
dem sel
dw_i_t
0/1
5-20
3-15
40-100
0/1
5-60
NOTE: No variables are available for CCN read or write operation.
EXAMPLE 221TEMP_CTL
DISPLAY SCREEN
To access this display from the ICVC default screen:
1. Press[MEN
0].
2. Press_.
3. Scroll down to highlightlEQUIPMENT
SERVICE I .
4. Press[SELECT].
5. Scroll down to highlightlTEMP
CTq.
6. Press[SEL_T].
STATUS
0/1
2-10
-30- 30
-40-245
-40-245
-30-30
0-15
0-15
-30-30
UNITS
DSABLE/ENABLE
^F
^F
DEG F
DEG F
^F
AF
AF
AF
POINT
ecw_opt
trap ramp
deg_20ma
res_rtl
res rt2
deg- rt
restd_l
restd 2
deg_chw
res_sel
DESCRIPTION
Control Point
ECW Control Option
Temp Pulldown Deg/Min
Temperature
Reset
RESET TYPE f
Degrees Reset At 20 mA
RESET TYPE 2
Remote Temp 1>
No Reset
Remote Temp 1>
Full Reset
Degrees Reset
RESET TYPE 3
CHW Delta T 1> No Reset
CHW Delta T 1> Full Reset
Degrees Reset
Enable Reset Type
0-3
lO
lO
4o
DSABLE
15
DEFAULT
DSABLE
3
10
85
65
10
10
0
5
0
33

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