PVR sub-zero NANOCHILL NC-110A User manual

User Manual
N A N O C H I L L
N C - 11 0 A
www.pvrcontrols.com
RST
2
SET
NANOCHILL

u Temperature Range : - 30.0ºC to + 50.0ºC
u 2 NTC probes for Liquid temp & Antifreeze
u HP,LP, Auxiliary Fault trip protection for Compressor.
u 16X2LCD with backlight to display all parameters.
O
(Resolution 0.5 C)
u Auto/Manual reset for HP,LP and AFT.
u Relay outputs : Compressor , Pump and Relay3 ( Alarm
or Water Sv).
The Subzero “NANO CHILL-NC110A” is a controller that
integrates all the basic control functions required by a chiller.
A user friendly Lcd screen displays all parameters, control
status and alarm messages.
Introduction
Features:
NO.
1.
2.
3.
4.
QTY
1No.
2Nos.
1No.
1 No.
1No.
ITEMS
CONTROLLER
SIDE LOCKS (SCREW TYPE)
TEMPERATURE SENSOR (LIQUID)
CATALOGUE
Items included :
ITEMS QTY
NO.
1.
5.
1 SET
LIQUID LEVEL SENSOR
TEMPERATURE SENSOR (ANTIFREEZE)
Optional :
01 02
NC-110A NC-110A

DESCRIPTIONPARAMETER
To set the cutout point of the
Compressor.
To set the cutout point of the
Compressor.
To set compressor restart delay.
To set temperature differential for
compressor restart.
To set maximum allowable high
temperature limit & alarm.
To set minimum allowable low
temperature limit and alarm..
To enable or disable Antifreeze
function.
To set Antifreeze tripping point.
To set Antifreeze resetting differential.
To set Main(Liquid) probe calibration.
To set Antifreeze probe calibration.
To set tripping voltage of digital inputs .
To set LP fault sensing delay.
CHILLER SET TEMP.
To set other parameters.
CHILLER SET TEMP.
COMP TIME DELAY.
DIFFERENTIAL
HI TEMP. ALARM
LOW TEMP. ALARM
AFTPROBE STATUS
AFT SET TEMP.
AFT DIFFERENTIAL
LIQ. PROBE CAL.
AFT PROBE CAL.
FAULT SENS LOGIC
LP SENSING DLY
Pg.
No.
PROGRAM MODE
SET MODE
05
05
05
06
06
06
07
07
07
08
08
08
09
09
INDEX INDEX
To set LP fault to Auto or Manual reset.LP FAULT RESET
To enable / disables liquid level
sensing.
LIQ. LEVEL SENSOR
To configure pump working logic.PUMP RUN LOGIC
To configure Relay3. RELAY3 LOGIC
To lock keypad.KEYPAD LOCK
Revert to factory set parameter.FACTORY SET
To end programmingSET - EXIT
Wiring Diagram
Panel Cutout & Dimensions
Technical Data
Installation & Maintenance
09
10
10
10
11
11
11
12
13
14
15
DESCRIPTIONPARAMETER
Pg.
No.
03 04
To set HP and AFT fault to Auto or
Manual reset.
HP/AFT RST 09
NC-110 NC-110
Key Introduction 11

CHILLER SET TEMP.
Sr.No.
Range
Function : To set the cutout point of the
Compressor.
Lt = Low temp Limit.
Ht = High temp.Limit
LCd will change to set mode and flash.
Then press set key once & release .Set
point will flash. Set point can now be
changed by using UP/DOWN key. After
achieving the desired range, press the
SET key .
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
Min Max Fact. Set
01
Release.
Press and hold set
key for 2 seconds and
Lt +0.5ºC Ht -0.5ºC 10.0ºC
To set other parameters. LCD will show Program Mode. And the
“Chiller Set Temp” will flash. To go to
other parameters, use up/ down keys.
02
03
Range
Min Max Fact. Set
Lt +0.5ºC Ht -0.5ºC 10.0ºC
CHILLER SET TEMP. Function : To set the cutout point of the
Compressor.
To change the parameter,
press the set key.
05 NC-110A
1.0ºC 10.0ºC 2.0ºC
Range
Min Max Fact. Set
0 Min 20 Min 3 Min
Use UP/DOWN keys to set desired
range.
0
EXAMPLE: If the set point is setat 10.0 C
0
and differential is setas 2.0 C, then when
0
the system reaches 10 C,the compressor
0
will cutout. Since differential is 2.0 C, the
0
compressor will cut in(restart) at 12.0 C
0 0
(10.0 C + 2.0 C).
press the set key.
To change the parameter,
05
Range
Min Max Fact. Set
DIFFERENTIAL Function: To set temperature differential
for compressor restart.
Sr.No.
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
06
HIGH TEMP. ALARM
EXAMPLE: Setting this parameter at
0
50.0 C will not allow the set point to go
0
above 50.0 C. Also if the temperature
0
reaches or goes above 50.0 Cthe display
will show High Temp. Alarm & at this point
the alarm will activate.
Use UP/DOWN keys to set desired
range. Once set at a particular range,
this will not allow the set point to go
above this range and below HI Temp
Alarm setting.
press the set key.
To change the parameter,
06
Range
Min Max Fact. Set
Function: To set maximum allowable
high temperature limit and alarm.
Set + 0.5ºC
Chiller 50.0ºC 50.0ºC
NC-110A
Parameter List
Min : MINIMUM Max : MAXIMUM
Fact. Set : FACTORY SETTING(DEFAULT)
04
COMP. TIME DELAY Function: To set compressor restart
delay.
Use UP/DOWN keys to set desired
range.
To change the parameter,
press the set key.
Hold key for 2 seconds and
Release.
EXAMPLE: If this parameter is set at 3
minutes, the compressor will cut off at
the set temperature, but will not restart
for a minimum of 3 minutes. This time
delay is also effective at 'Power On’ of
the system. This safety feature is used
to protect the compressor from restarting
within a short period due to power
fluctuations.
SET MODE
PROGRAM MODE
Use UP/DOWN keys to set desired
range.
Lt = Low temp Limit.
Ht = High temp.Limit

Range
Min Max Fact. Set
Sr.No.
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
AFT PROBE STATUS
Disable= It disables the Anti. Freeze Trip
function of the controller
Enable = It enables the Anti. Freeze
Trip function of the controller
Use UP/DOWN keys to set desired
range.
To change the parameter,
press the set key.
08
Range
Min Max Fact. Set
Function: To enable or disable Antifreeze
probe function.
EXAMPLE: Setting this parameter at
0
6.0 C will not allow the set point to go
0
below 6.0 C Also, if the temperature
0
reaches or goes below 6.0 C the display
will show Low Temp. Alarmand at this
point the alarm will activate.
AFT Set
Point
+1.0ºC - 0.5ºC
Set Point 6.0ºC
Disable Enable Disable
07
AFT SET TEMP
Use UP/DOWN keys to set desired
range.
EXAMPLE: If this parameter is set to
5.0ºC controller will trip the compressor
on Antifreeze fault if the AFT sensor
goes below 5.0ºC.
press the set key.
To change the parameter,
09
Range
Min Max Fact. Set
Function: To set Antifreeze tripping point.
-30.0ºC Lt-1.0ºC 5.0ºC
LOW TEMP. ALARM
07
Function: To set minimum allowable low
temperature limit and alarm.
To change the parameter,
press the set key. Use UP/DOWN keys to set desired range.
Once set at a particular range, this will not
allow the set point to go below this range
and above Low Temp Alarm setting.
NC-110A
Sr.No.
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
08
LIQ. PROBE CAL
Use UP/DOWN keys to set desired range.
During the course of time there may be a
slight offset in the actual temperature and
the temperature displayed.
EXAMPLE: If the actual temperature is
20.0ºC and the temperature on the
controller shows 22.0ºC set this
O
parameter to -2.0 C and once out of this
mode, the temperature will display
20.0ºC. (22.0ºC-2.0ºC).
press the set key.
To change the parameter,
11
Range
Min Max Fact. Set
Function: To set Main(Liquid) probe
calibration.
AFT DIFFERENTIAL
To change the parameter,
press the set key.
10
Function: To set fault resetting
differential once it tripped of Aft set point.
Use UP/DOWN keys to set desired
range.
EXAMPLE: If the AFT set point is set at
5.0ºC and differential is set to 2.0ºC then
after tripping on AFT fault controller will
clear the AFT fault only when the AFT
Temperature goes above
7.0ºC(5.0ºC+2.0ºC).
1.0ºC 10.0ºC 2.0ºC
Range
Min Max Fact. Set
-10.0ºC 10.0ºC 0.0ºC
AFT PROBE CAL
Setting Procedure same as Liq. Probe
Cal.
Use UP/DOWN keys to set desired
range.
To change the parameter,
press the set key.
12
Function: To set Antifreeze probe
calibration.
Range
Min Max Fact. Set
-10.0ºC 10.0ºC 0.0ºC
NC-110A

1 Sec 90 Sec 30 Sec
Manual Auto Auto
Sr.No.
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
09
LP SENSING DLY
HP / AFT RST
EXAMPLE:If this parameter is set at 30
seconds, the system will ignore low
pressure alarm for 30 sec from
compressor on.In this manner, a false
alarm can be avoided due to low
pressure at compressor start up.
Use UP/DOWN keys to set desired
range.
Auto= it sets the HP- AFT faults for auto
reset.
Use UP/DOWN keys to set desired
range.
Manual= it sets the HP- AFT faults for
manual reset
To change the parameter,
press the set key.
To change the parameter,
press the set key.
14
15
Function:To set LP fault sensing delay.
Function: This parameter will set HP and
AFT fault to Auto or Manual reset.
Range
Range
Min
Min
Max
Max
Fact. Set
Fact. Set
LP FAULT RESET
16
Function: This parameter will set LP fault
to Auto or Manual reset.
press the set key.
To change the parameter, Use UP/DOWN keys to set desired
range.
Sr.No.
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
10
Enable= This parameter enables Liquid
level sensing in the controller.
Disable= This parameter disables Liquid
level sensing in the controller.
Range
Min Max Fact. Set
Disable Enable Disable
PUMP RUN LOGIC
RELAY3 LOGIC
Use UP/DOWN keys to set desired
range.
Always On= it sets the pump to always
on mode.
With Comp =In this case pump will
switch ON and OFF with compressor.
Use UP/DOWN keys to set desired
range.
EXAMPLE: If set to water sv,Relay3 will
switch on incase of liquid level is below
mid level.If set to Alarm, Relay3 will
switch on for all faults .
18
19
Function: This parameter configures
pump working logic.
Function: This parameter configures
Relay3.
Range
Range
Min
Min
Max
Max
Fact. Set
Fact. Set
To change the parameter,
press the set key.
To change the parameter,
press the set key.
Always On With Comp Always On
Alarm Water SV Alarm
press the set key.
To change the parameter,
LIQ LEVEL SENSOR
17
Function: This parameter enable /
disables liquid level sensing.
Use UP/DOWN keys to set desired
range.
Use UP/DOWN keys to set desired
range.
0v- Trip the compressor or pump if fault
i/p is 0v
230V-Trip the compressor or pump if
fault i/p is 230Vac
press the set key.
To change the parameter,
Range
Min Max Fact. Set
0V 230 V 230V
Manual Auto Auto
Manual= it sets the LP fault for manual
reset
Auto= it sets the LP fault for auto reset.
Range
Min Max Fact. Set
FAULT SENS LOGIC
13
Function: To set tripping voltage of
digital inputs .
Contd.
NC-110A NC-110A

Panel Cutout : 92 X 45 mm
Protection : IP54 Frontal
0 0
Range : -30.0 C to +50.0 C
0
Accuracy : +/-1 C
0 0
Storage temp : -20 C to 70 C(non-condensing)
2
< 2.5mm one wire/terminal only.
Data Storage : Non-Volatile EEPROM Memory
Power Input : 230Vac +/-20%, 50Hz
Connection : Plugable Screw terminal blocks.
Dimensions : Front - 106.2 x 50 mm
Mounting : Flush panel mounting
Display : 16x2 LCD
0
Resolution : 0.5 C
0 0
Operating Temp : 5 C to 50 C(non-condensing)
0 0
Probe Tolerance : +/-0.3 C at 25 C
Input : NTC Probe, SZ-N75
Housing : ABS Plastic
All Relay : 5A/250Vac
Depth- 59 mm
Technical Data
12
NC-110A
Disable Enable Disable
Sr.No.
Parameter
(LCD Message)
Description of parameters and functions.
Parameter setting
method.
11
FACTORY SET
SET - EXIT
UP/DOWN - SCROLL
Use UP/DOWN keys to set desired
range.
To restore default settings of the
controller. When set to Enable, all
parameters are programmed to factory
settings. Used to debug setting related
problems.
Once the SET key is pressed the control
goes into the normal mode and displays
the temperature.
21
22
Function: Revert to factory set
parameter.
Function : To end programming
Range
Min Max Fact. Set
press the set key.
To change the parameter,
To end Program mode press
set key.
KEYPAD LOCK
Use UP/DOWN keys to set desired
range.
Enable = all parameters are locked to
set values.
Disable= Use can change the values.
20
Function: To lock keypad.
Range
Min Max Fact. Set
To change the parameter,
press the set key.
Disable Enable Disable
Key Introduction :
NC-110A
Key Description
Press for 4 seconds to reset HP, LP, AFT faults in manual reset.
Used in program mode and set mode to increment parameter
value.
prb
Used to view to Antifreeze (AFT) Temperature.
Used to enter into the program mode.
Used in program mode and set mode to decrement parameter
value.
In program mode and set mode used to set the changed value
of parameter or to enter into set mode.

13 NC-110A 14
NC-110A
Panel Cutout & Dimensions
Note : All dimension are in mm.
59
92
92
45
Top View
Side Lock
CONTROLLER
PANEL
106.2
50
Front View
Max
15 mm
59
5045
Wiring Diagram
RELAY3
11 14 18
12 15 19
13 16 20
17
PHASE NEUTRAL
COMP PUMP
NO NO
C C
NC
1 4 8
25
3 6 7
NO CNC
910
POWER
230V
LIQUID
AFT.
To SZ-N75
To SZ-N75
HP
LP
LOW
MED
HIGH
LIQUID LEVEL
AUX
NEUTRAL
21
To Relay3 5A/250Vac max
Caution: Wiring for 230Vac load only
To Compressor 5A/250Vac max
To Pump 5A/250Vac max

WARNING : Improper wiring may cause irreparable damage and personal
injury. Kindly ensure that wiring is done by qualified personnel only.
Maintenance : Cleaning : Clean the surface of the controller with a soft
moist cloth. Do not use abrasive detergents, petrol, alcohol or solvents.
WIRING : The probe and its corresponding wires should never be installed
in a conduit next to control or power supply lines. The electrical wiring
should be done as shown in the diagram. The power supply circuit should
be connected to a protection switch. The terminals admit wires of upto
2.5sq mm.
Fixing and dimensions of panel models :To fix the unit, slide the side lock 1
through the guides 2 as per the position shown in the figure. Move the side
lock in the direction of the arrow, it permits to move the fastener in the opposite
direction of the arrow. 3 Fit the screw in the side lock in direction of the arrow to
hold the controller in the panel.
Installation
Controller
Controller should be installed in a place protected by vibration, water and
corrosive gasses and where ambient temperature does not exceed the values
specified in the technical data.
Probe
To give a correct reading, the probe must be installed in a place protected from
thermal influences, which may affect the temperature to be controlled.
CAUTION
15 16
The information in this document is subject to change in order to improve
reliability , design or function without prior notice and does not represent a
commitment on the part of the company. In no event will the company be liable
for direct, indirect, special, incidental or consequential damage arising out of
the use or inability to use the product or documentation, even if advised of the
possibility of such damages. No part of this manual may be reproduced or
transmitted in any form or by any means without the prior written permission of
the company.
Notice
Disclaimer
Warranty
This product is warranted against defects in materials and workmanship for a
period of one year from the date of purchase. During the warranty period,
product determined by us to be defective in form or function will be repaired or,
at our option, replaced at no charge. This warranty does not apply if the product
has been damaged by accident, abuse, and misuse or as a result of service or
modification other than by the company. This warranty is in lieu of any other
warranty expressed or implied. In no event shall the company be held liable for
incidental or consequential damages, such as lost revenue or lost business
opportunity arising from the purchase of this product.
This manual & its contents remain the sole property of PVR Controls, India and
shall not be reproduced or distributed without authorization. Although great
care has been taken in the preparations of this document, the company or its
vendors in no event will be liable for direct, indirect, special, incidental or
consequential damage arising out of the use or inability to use the product or
documentation, even if advised of the possibility of such damages. No part of
this manual may be reproduced or transmitted in any form or by any means
without the prior written permission of the company. PVR Controls reserves the
right to make and changes or improvements without prior notice.
NC-110A NC-110A

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