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JOHNSON CONTROLS

2

FORM 160.79-PW2 

ISSUE DATE: 01/31/2019

This equipment is a relatively complicated apparatus. 

During rigging, installation, operation, maintenance, 

or service, individuals may be exposed to certain com-

ponents or conditions including, but not limited to: 

heavy objects, refrigerants, materials under pressure, 

rotating components, and both high and low voltage. 

Each of these items has the potential, if misused or 

handled improperly, to cause bodily injury or death. It 

is the obligation and responsibility of rigging, instal-

lation, and operating/service personnel to identify and 

recognize these inherent hazards, protect themselves, 

and proceed safely in completing their tasks. Failure 

to comply with any of these requirements could result 

in serious damage to the equipment and the property in 

IMPORTANT!

READ BEFORE PROCEEDING!

GENERAL SAFETY GUIDELINES

which it is situated, as well as severe personal injury or 

death to themselves and people at the site.
This document is intended for use by owner-authorized 

rigging, installation, and operating/service personnel. It 

is expected that these individuals possess independent 

training that will enable them to perform their assigned 

tasks properly and safely. It is essential that, prior to 

performing any task on this equipment, this individual 

shall have read and understood the on-product labels, 

this document and any referenced materials. This in-

dividual shall also be familiar with and comply with 

all applicable industry and governmental standards and 

regulations pertaining to the task in question.

SAFETY SYMBOLS

The following symbols are used in this document to alert the reader to specific situations:

Indicates a possible hazardous situation 

which will result in death or serious injury 

if proper care is not taken.

Indicates a potentially hazardous situa‑

tion which will result in possible injuries 

or damage to equipment if proper care is 

not taken.

Identifies a hazard which could lead to 

damage to the machine, damage to other 

equipment and/or environmental pollu‑

tion if proper care is not taken or instruc‑

tions and are not followed.

Highlights additional information useful 

to the technician in completing the work 

being performed properly.

External wiring, unless specified as an optional connection in the manufacturer’s product line, is not 

to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls 

and any external wiring must not be installed inside the micro panel. All wiring must be in accor‑

dance with Johnson Controls’ published specifications and must be performed only by a qualified 

electrician. Johnson Controls will NOT be responsible for damage/problems resulting from improper 

connections to the controls or application of improper control signals. Failure to follow this warn‑

ing will void the manufacturer’s warranty and cause serious damage to property or personal injury.

Содержание YD

Страница 1: ...DATE ________ APPROVAL DATE ________ CONSTRUCTION DATE _______ Supersedes 160 79 PW2 616 Form 160 79 PW2 119 FIELD CONTROL MODIFICATIONS FOR YD CHILLER STYLE D WITH OPTIVIEW CONTROL CENTER Issue Date...

Страница 2: ...this document and any referenced materials This in dividual shall also be familiar with and comply with all applicable industry and governmental standards and regulations pertaining to the task in que...

Страница 3: ...these documents to the equipment If there is any question regarding the applicability of these documents rig ging lifting and operating service personnel should verify whether the equipment has been m...

Страница 4: ...JOHNSON CONTROLS 4 FORM 160 79 PW2 ISSUE DATE 01 31 2019 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 5: ...Thermal Type Flow Sensor 12 Digital Type Flow Sensors 12 Electro Mechanical Starter Manual Reset Overloads 12 Remote Current Limit Setpoint with 0 10VDC 2 10VDC 0 20mA 4 20mA or Pulse Width Modulation...

Страница 6: ...Manual Reset Overloads 2300 To 4160 Volts U l Or C S A Approved Units Only 12 FIGURE 14 Electro Mechanical Starter Manual Reset Overloads 2300 To 4160 Volts U l Or C S A Approved Units Only 13 FIGURE...

Страница 7: ...ication of Sequence Control Kit so only one unit is running when a single unit can carry the cooling load 2 When multiple unit installations are controlled by an EMS a remote run stop switch input is...

Страница 8: ...signal a 0 to 10 or 2 to 10 volt D C signal 7 The Building Automation System BAS may be interfaced with the chiller OptiView Control Center to provide unified chiller plant system control The BAS Syst...

Страница 9: ...not per mitted to start due to a CYCLING shutdown condition The unit will automatically restart after the cycling condition is no longer present Unit Operation Manual Form 160 79 O1 provides a list an...

Страница 10: ...M EMS When the OptiView Control Center is in the Digital Analog or ISN remote operating mode and the Local Run Stop is in the RUN mode with the Remote Run Stop Switch contact connected to TB4 1 and TB...

Страница 11: ...UNIT SEQUENCE For multiple chiller installation application Multi Unit Sequence contacts are available to start and stop each unit The maintained closure of a device contacts across terminals 1 and 9...

Страница 12: ...0 available at additional cost When condenser water is flowing the flow switch contact will close Opening of the condenser water flow switch contacts for 2 continuous seconds will cause unit shutdown...

Страница 13: ...ion this jumper Important The signal type used for Re mote Current Limit Setpoint reset and the signal type used for Remote Leaving Chilled Liquid Temperature setpoint re set must be the same For exam...

Страница 14: ...4 X 4 375 100 17 5 82 5 83 LD06832 Figure 17 REMOTE CURRENT LIMIT SETPOINT WITH PWM SIGNAL PWM The Pulse Width Modulation input is in the form of a 1 to 11 second relay contact closure that applies 1...

Страница 15: ...oint then a 0 10VDC signal must be used for Leaving Chilled Liquid Temperature reset LD04500 Figure 18 REMOTE CURRENT LIMIT SETPOINT WITH 0 1VDC OR 2 10VDC SIGNAL 0 10VDC As shown in Figure 18 on page...

Страница 16: ...H 0 20MA OR 4 20MA SIGNAL 4 20mA As shown in Figure 19 on page 16 con nect input to Micro Board J22 4 signal and J22 5 Gnd A 4mA signal produces a 0 F offset A 20mA signal produces the maximum allowed...

Страница 17: ...int would be set to 44 F as follows OFFSET F 5 1 10 10 4 10 10 40 10 4 F SETPOINT F 40 4 44 F EXTERNAL SIGNAL FOR REFRIGERATION UNIT FAILURE When the Safety Shutdown Contacts see Figure 3 on page 9 ar...

Страница 18: ...o Unit Operation Manual Form 160 79 O1 When flow is sensed the flow sensor contacts are closed Opening of the flow sensor contacts no flow for 2 continuous seconds causes a cycling shutdown displaying...

Страница 19: ...des 6 Each 115VAC field connected inductive load i e relay coil motor starter coil etc shall have a tran sientsuppressorwired byothers inparallelwithits coil physically located at the coil Spare trans...

Страница 20: ...Pennsylvania USA 17349 800 861 1001 Subject to change without notice Printed in USA Copyright by Johnson Controls 2019 www johnsoncontrols com ALL RIGHTS RESERVED Form 160 79 PW2 119 Issue Date Januar...

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