background image

GENERAL NOTES

1. WARNING-For continued protection against fire hazard replace fuses with the same type and rating only.

2. Unit must be permanently grounded and conform to N.E.C. & local codes.

3. Use copper conductors for field-wiring.  Class 1, unless noted.  All wire based on 105°C insulation wire, minimum.

4. Wire colors shown may differ from actual unit.

5. 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

6. Design, specifications, and components are subject to change without notice.

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.

COMPONENT CODES

AUX

Auxiliary (contact block)

BZR

Buzzer

CC1

Compressor Contactor 1

CC2

Compressor Contactor 2

CCH

Crank Case Heater

COM

Common

CR

Control Relay

CR1

Control Relay for Cooling Mode Status

CR2

Control Relay for Active Cooling On

CR3

CR for Chiller Pump functions

CR4

CR for Process Pump functions

CR5

CR for Remote ON/OFF Operation

DB

Distribution Block

FPS

Fan-Cycling Pressure Switch

F1/F2

Fuse 1 and 2 (Transformer Primary)

F3

Fuse 3 (120VAC Control Voltage)

F4

Fuse 4 (24VAC Control Voltage)

FST

Flow Safety T-Stat

FZT

Freeze Safety T-Stat

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 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

PS

Power Supply

RC

Run Capacitor

SW1

Selector Switch (Pump/Off/Cooling)

SW2

Selector Switch (Process Pump)

SW3

Local/Remote Switch

TB1

Terminal Block 1 (for Internal)

TB2

Terminal Block 2 (for External)

TC

Thermocouple

TLH

Tank Level Switch – High

TLL

Tank Level Switch – Low

TLM

Tank Level Switch – Mid

TRAN

Transformer

EDIT DATE:

August 26, 2015

DESCRIPTION

ELECTRICAL DRAWING:  Series A – Level 1 Delta Controls

Typical design for One and Two Compressor systems.

Using standard 24VDC on/off inputs. 24VAC controls outputs.

Options and typical variations shown or noted.

FILE:

DWG_Electrical-DeltaControl-SeriesA120_081915.vsd

PAGE#:

1

01

02

03

04

05

06

07

08

09

10

11

12

13

14

15

16

SHEET:

1

PAGE:

A120-PowerCircuit(3phase)

LINE#

17

18

LINE LEGEND

FACTORY SUPPLIED/INSTALLED

DETAILS

FACTORY OPTION

FIELD SUPPLIED/INSTALLED

TERMINAL BLOCK CONTACT #

#

GROUNDING 

LUG

CHASSIS

GND

GND

M

Pump #2 (Process Pump)

(OPTION)

PC2

M

Pump #1 (Chiller Pump)

PC1

M

Compressor #2

(Tandem Compressor Systems)

CC2

CCH

CC2-Aux

M

Compressor #1

CC1

CCH

CC1-Aux

MAIN POWER 

3PHASE

L1
L2
L3

MAIN

DISCONNECT

L1
L2
L3

DB-Line

RC3

M

Fan #3

(180&240models)

(See Page Note #3)

RC2

M

Fan #2

(See Page Note #3)

FPS

RC1

M

Fan #1

(See Page Note #3)

MS1

( 212 )

MS2

( 207 )

Field Supplied/Installed

* PAGE NOTES

1. Control transformers must be wired/tapped for the appropriate incoming voltage.  Depending on design, one dual 

voltage or two independent voltages.

2. Models -24 to -90 models have 1 fan, -120 and -150 models have 2 fans.  -180 and -240 models have 3 fans.

3. Fan speed controller will be installed on #2 fan on 120 to 150 models and installed on #3 on 180 and 240 models.

4. Fuse block, contactor, and overload may be used in place of motor starter and contactor combination.

5. Single phase pump motors may be used. Motors must be internally, thermally protected.

To CONTROL

CIRCUIT

( See 201 )

TRAN1

(PageNote 1,2)

F2

F1

M

Single Phase Pump Motor

(Example)

PC#

See PAGE NOTE #5

M

Three Phase Pump Motor

(Example)

PC#-OL

( ### )

PC#

FB

See PAGE NOTE #4

Содержание ACWC-180-EM-DR-LT-0-5

Страница 1: ...Houston Texas 77032 Phone 800 473 9178 281 227 8400 Fax 800 473 9175 281 227 8404 www waterchillers com INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS ACWC 240 E model shown AIR COOLED WATER CHI...

Страница 2: ...ient fan control Casters optional d M20 Suitable for outdoor use to 20 F ambient Hot Gas Bypass and or Wind Baffles may be included Casters optional 7 Electrical Power See specification sheet Variatio...

Страница 3: ...has been inspected at the factory and released to the transportation agency without known damage Inspect carton s exterior for evidence of rough handling in shipment Carefully remove protective wrap...

Страница 4: ...unit to ensure proper oil return to compressors and fluid draining 2 When unit is in proper location secure unit to foundation or on vibration isolators as needed required by local requirements Fasten...

Страница 5: ...efrigerant Charge E ELECTRICAL POWER AND CONNECTIONS1 1 POWER SUPPLY Field wiring must comply with national and local codes a Install a branch circuit fused disconnect of adequate size to handle start...

Страница 6: ...ezing can occur from the external ambient or internal system temperatures 2 INTERNAL The evaporator or other heat exchanger is the primary component that is susceptible to freezing even during normal...

Страница 7: ...rating of the chiller 2 Some conditions are a Ambient conditions for air cooled systems b Condenser fluid for water cooled systems c Type of fluid being chilled d Design and setup of the chiller e Lea...

Страница 8: ...illed with fluid prior to starting e Systems with an open tank are typically capable of bleeding excess air that is returned to the tank when the system is operating Piping in and out are typically be...

Страница 9: ...LED readout which is an indication of the current temperature of the fluid in the chiller tank or Leaving Fluid Temperature depending on the specific chiller design 8 COOLING CYCLE Unit is now ready t...

Страница 10: ...F At this temperature an internal bi metal disk valve opens and causes the scroll elements to separate which stops compression Suction and discharge pressures balance while the motor continues to run...

Страница 11: ...SAFETY LPS a Monitors the pressure of the refrigerant suction line and will automatically open when the pressure drops below the set point and will automatically reset when pressure is above the non a...

Страница 12: ...ted valves similar to MCSO however it can be setup to change automatically based on a system safety situation 23 TANK LEVEL OPTIONS a Float Valve a Located inside the tank the float valve is a mechani...

Страница 13: ...with wire brush and or abrasive clothes and then the surface can be recoated to reduce future corrosion For severe environments use a durable epoxy paint that can create an oxygen barrier c Fasteners...

Страница 14: ...ecome jagged or splattered to avoid premature compressor and or pump failure Contactor points are consumable and their life is dependent on the amount of use and power characteristics at the unit 11 R...

Страница 15: ...t unless issue has been resolved Troubleshoot the switch DO NOT BYPASS IMPORTANT This condition can occur when the fluid in the evaporator nears freezing 9 Flow Switch Tripped switch open 9 Determine...

Страница 16: ...leak and recharge 4 Overcharged system 4 Remove refrigerant adjust charge FROSTED LIQUID LINE AFTER DRIER 1 Restricted filter drier 1 Remove restriction or replace COMPRESSOR WILL NOT LOAD UNLOAD HOT...

Страница 17: ...ply TEMPERATURE CONTROLLER ERROR 1 Temperature indication not accurate 1 Verify temperature sensor is in good condition and mounted properly Adjust the offset Typically it is only adjusted a few degre...

Страница 18: ...hnical Specification C Physical Installation Drawings D Electrical Drawings E Component Technical Pump options etc when available F Parts Warranty G Labor Warranty if included H Startup Checklist MNL_...

Страница 19: ...r starter or overload or the Tank Level is above the low level if included 2 Any issues with these items will result in a fault There is an initial delay bypassing the flow switch to permit flow to st...

Страница 20: ...switch is turned off or a fault occurs DISPLAYS Power ON typical Only at startup Normal display PV b190 DTB series Firmware V1 90 PV 51 3 Present Value SV r r Output type Relay and Relay SV 50 0 Set...

Страница 21: ...ow 9600 Leaving Fluid Temperature Too Low Freeze Thermostat is open 9700 Either 1 Pump Safety Circuit has tripped or 2 Low Tank Level at Start 9710 Either 1 Pump Safety circuit was tripped or 2 Low Ta...

Страница 22: ...d Rate 9600 LEN Communication Data Length 8 Prty Communication Parity Bit Even StoP Communication Stop Bit 1 Value Set Codes Code Description B ACTUAL SETTINGS r S Operation Mode rUn SP Decimal point...

Страница 23: ...PT LIFS 000 100 0 1 2730 Maximilian Drive Houston Texas 77032 Phone 800 473 9178 281 227 8400 Fax 800 473 9175 281 227 8404 www waterchillers com Liquid Flow Switch...

Страница 24: ...S 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...

Страница 25: ...in a location away from sources of excessive heat and within the specified ambient operating conditions See Technical Specifications for ambient operating conditions IMPORTANT Use this P266 Single Ph...

Страница 26: ...ctronic Pressure Transducer 0 to 52 bar 0 to 754 psi total range with a 1 4 in SAE Female Flare connection and a 2 meter 3 1 ft cable P266xxx x Product P266xxx x Single Phase Condenser Fan Speed Contr...

Страница 27: ...alves filter drier pump down valves fan cycling head pressure controls Process Fluid Components Bronze Y strainer with 20 mesh stainless steel screen Pumps are stainless steel centrifugal Tanks are in...

Страница 28: ...0 0_ 0414 doc PUOD 240 003 0 0 3 Hp 3 Motor ODP Pump with 5 5 Impeller and 0 250 Vane at 3500rpm ASP SSPC Pump Motor Assembly Exploded View If needed the pump label is located on the pump casing near...

Страница 29: ...orts Condensing Area Access Panel Line Voltage Temperature Controller Control Panel PUMP COOL OFF Power Switch High Pressure Reset NOTES Unit should be installed with at least 4 clearance on all sides...

Страница 30: ...it System 2 3 5 2015 SCALE NTS DWG_RefrigerantCircuit Ref Chw ACWC SingleCircuit Typical_0215 vsd SHEET 1 NOTES All specifications and designs are subject to change without notice Hot Gas Bypass optio...

Страница 31: ...SHEET 2 CHILLER PUMP WATER SUPPLY OUT MANUAL BYPASS STAINLESS STEEL TANK WITH SHOE BOX LID WATER RETURN IN DRAIN STAINLESS STEEL COPPER BRAZED PLATE EVAPORATOR TEMPERATURE SENSOR Temperature Controlle...

Страница 32: ...mp PLC Programmable Logic Controller PS Power Supply RC Run Capacitor SW1 Selector Switch Pump Off Cooling SW2 Selector Switch Process Pump SW3 Local Remote Switch TB1 Terminal Block 1 for Internal TB...

Страница 33: ...PLC INPUTS PLC OUTPUTS RED BLK TRAN1 PS 24VDC HPS VIO GRA YLW X1 X0 X2 S S WHT SW1 1 SW1 2 BRN BLU ORN GRN X3 X4 X5 X7 X6 BLK BLK PAGE NOTES 1 Control transformers must be wired tapped for the approp...

Страница 34: ...ontrol 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 wit...

Страница 35: ...Notes...

Страница 36: ...MAINTENANCE RECORD DATE PROCEDURE PERFORMED...

Страница 37: ...ll piping is connected properly as appropriate Yes No 12 All chilled water valves are open as appropriate Yes No 13 Crankcase heaters energized for 24 hours before start up Yes No 14 Outdoor piping wr...

Страница 38: ...__________________________________________________________________ __________________________________________________________________________________________________ __________________________________...

Страница 39: ...ight charges to ship these parts EXCLUSIONS The foregoing provisions state the exclusive remedy for any breach of warranty or any other claim in respect to the product described on the reverse side of...

Страница 40: ...s that are not manufacturing defects and are therefore not included in this Limited Warranty 1 Damage to unit or unsatisfactory operation due to improper cleaning or use of unit in corrosive atmospher...

Отзывы: