SHEET #:
3
SHEET:
Option: System ON-OFF
REF DATE:
February 2, 2016
DESCRIPTION
Options for Series A Control System
Standard setup and typical variations
shown or noted.
FILE:
DWG_Electrical-DeltaControl-SeriesA122_020216.vsd
GENERAL NOTES
1. Circuit breaker(s) may be used in place of fuse(s).
2. WARNING-For continued protection against fire hazard replace fuses with the same type and rating only.
3. Unit must be permanently grounded and conform to N.E.C. & local codes.
4. Use copper conductors for field-wiring. Class 1, unless noted. All wire based on 105°C insulation wire, minimum.
5. Wire colors shown may differ from actual unit.
6. Drawing line item reference identification:
- Number in parenthesis near output is location of controlled items. First number is sheet #, second & third are line#.
- No underline indicates normally open (NO) contact, Underline indicates normally closed (NC) contact.
7. All intellectual property, including designs and programming logic are the property of Cold Shot Chillers and is not to be
copied or used without permission from Cold Shot Chillers.
8. Design, specifications, and components are subject to change without notice.
9. Options and alternate design and components may exist and are typically dependent on design and specific parts used
for the system.
LINE LEGEND
FACTORY SUPPLIED/INSTALLED
DETAILS
FACTORY OPTION
FIELD SUPPLIED/INSTALLED
TERMINAL BLOCK CONTACT #
#
09
10
11
LINE#
12
13
14
15
16
17
18
01
02
03
04
05
06
07
08
COMPONENT CODES
AUX
Auxiliary (contact block)
BZ
Buzzer
CC#
Compressor Contactor 1 or 2
CCH
Crankcase Heater
COM
Common
CR#
Control Relay:
CR1
CR for Cooling Mode Status
CR2
CR for Active Cooling On
CR3
CR for Chiller Pump functions
CR4
CR for Process Pump functions
CR5
CR for Remote ON/OFF Operation
CR6
CR for Tank Level Control
DB
Distribution Block
DT
Digital Temperature Controller
F
Fuse
F1/F2
Fuse 1 and 2 (Transformer Primary)
F3
Fuse 3 (120VAC Control Voltage)
F4
Fuse 4 (24VAC Control Voltage)
FC
Fan Contactor
FPS
Fan-Cycling Pressure Switch
FST
Flow Safety Thermostat
FZT
Freeze Safety Thermostat
GND
Ground
HG
Hot Gas
HPS
High Pressure Switch
L
Line
LAR
Low Ambient Relay
LAT
Low Ambient Thermostat
LFS
Liquid Flow Switch
LPS
Low Pressure Switch
LT1
Light 1 for Cooling Status – OK
LT2
Light 2 for Cooling Status – Fault Condition
M
Motor
MS
Motor Starter
NC
Normally Closed
NO
Normally Open
PC1
Pump Contactor 1 (Chiller Pump)
PC2
Pump Contactor 2 (Process Pump)
PLC
Programmable Logic Controller
PM
Phase/Voltage Monitor
PS
Power Supply
RC
Run Capacitor
SW1
Selector Switch (Pump/Off/Cooling)
SW2
Selector Switch (Process Pump)
SW3
Local/Remote Switch
TB
Terminal Block
TC
Thermocouple (Type J only)
TLH
Tank Level Switch – High
TLL
Tank Level Switch – Low
TLM
Tank Level Switch – Mid
TRAN
Transformer
STANDARD OPTION: RS
Remote System ON/OFF Control
(Start/Stop Chiller System using Internal 24VDC via Terminal Blocks to Remote Dry Contacts)
CR5
CR5
Switch or Contact
Factory Supplied (with temporary jumper)
Example 1 (Remove Jumper and
connect to external dry contact)
Remote ON/OFF Relay
(Voltage Specific, standard 24VAC)
(Factory Mounted Internally, Operated
Remotely)
Remote ON/OFF Relay (CR5) NO Contact
(Factory wiring to terminals)
OPTION: RS-VE
Remote System ON/OFF Control
with External Supplied Control Voltage
1
2
33
32
OPTION CODE VARIATIONS
RS
Remote System ON/OFF Control with internal supplied 24VDC (requiring Dry Contacts)
RS-V
Remote System ON/OFF Control with internal supplied 24VAC
RS-V-6
Remote System ON/OFF Control with internal supplied 120VAC
RS-VE
Remote System ON/OFF Control with
external
supplied 24VAC
RS-VE-6
Remote System ON/OFF Control with
external
supplied 120VAC
External Control
Circuit
Voltage
CR5
CR5
Remote ON/OFF Relay
(Voltage Specific, standard 24VAC)
(Factory Mounted Internally, Operated
Remotely)
Remote ON/OFF Relay (CR5) NO Contact
(Factory wiring to terminals)
OPTION: RS-V
Remote System ON/OFF Control
(Start/Stop Chiller System using Internal 24VAC via Terminal Blocks to Remote Dry Contacts)
1
2
16
6
NOTES
USE: To provide low control voltage to a remote location control circuit dry set of contacts to permit
start and stop the Chiller system function. Chiller Pump function is to pump fluid through the
evaporator of the chiller.
METHOD: Designated numbered terminal blocks requiring specific voltage supplied from external
source, Class 2 wiring capable. Voltage depends on control relay (CR5) voltage. Standard
voltage of relay is 24VAC, unless specified differently prior to order.
1. Voltage to terminals for ON
2. No Voltage to terminals for OFF
3. SW1 on chiller must be in the appropriate position
Interconnections are field supplied and installed.
Temporary Jumper to be removed prior to operation (“J1 “Tag typically attached to jumper wire)
Note on chiller to state that prior to servicing, the selector switch (SW1) must be in the OFF position to
prevent remote operation. Unit could start at any time.
System will have multiple power sources.
External Control
Circuit
Contact
0VAC
CONTROL
VOLTAGE
NOTES
USE: To provide low control voltage to a remote location control circuit dry set of contacts to permit
start and stop the Chiller system function. Chiller operation dependent on position of system
selector switch (SW1).
METHOD: Designated numbered terminal blocks providing 24VDC (Class 1) voltage to the system
selector switch SW1. Position of SW1 determines mode to start and stop.
1. Contacts must Close for ON
2. Contacts Open for OFF
3. SW1 on chiller must be in the appropriate position
Interconnections are field supplied and installed.
Switch may be Factory or Field supplied.
Temporary Jumper to be removed prior to operation (“J1” Tag typically attached to jumper wire)
Note on chiller to state that prior to servicing, the selector switch (SW1) must be in the OFF position to
prevent remote operation. Unit could start at any time.
NOTES
USE: To provide internal control voltage to a remote location control circuit dry set of contacts to permit
start and stop the Chiller system function. Chiller operation dependent on position of system
selector switch (SW1).
METHOD: Designated numbered terminal blocks providing 24VAC (Class 1) provide voltage to the
system selector switch SW1.
1. Contacts Close for ON
2. Contacts Open for OFF
3. SW1 on chiller must be in the appropriate position
Interconnections are field supplied and installed.
Switch may be Factory or Field supplied.
Temporary Jumper to be removed prior to operation (“J1 “Tag typically attached to jumper wire)
Note on chiller to state that prior to servicing, the selector switch (SW1) must be in the OFF position to
prevent remote operation. Unit could start at any time.
Jumper
2
1
Summary of Contents for ACWC-180-EM-DR-LT-0-5
Page 35: ...Notes...
