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- Page 1 INDOOR PACKAGED EQUIPMENT START-UP GUIDE Supersedes 145.05-SU7 (412) Form 145.05-SU7 (1019) 035-22911-000 WATER-COOLED SELF-CONTAINED UNITS MODEL LSWU / LSWD / LSWF WITH IPU2 CONTROL 025-105 TONS Issue Date: October 31, 2019...
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Page 2: General Safety Guidelines
All wiring must be in accordance with Johnson Controls’ published specifications and must be performed only by a quali- fied electrician. Johnson Controls NOT be responsible for damage/problems resulting from improper connections to the controls or application of improper control signals. -
Page 3: Changeability Of This Document
FORM 145.05-SU7 ISSUE DATE: 10/31/2019 CHANGEABILITY OF THIS DOCUMENT In complying with Johnson Controls’ policy for con- these documents, the technician should verify whether tinuous product improvement, the information con- the equipment has been modified and if current litera- tained in this document is subject to change without ture is available from the owner of the equipment prior notice. - Page 4 FORM 145.05-SU7 ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY BLANK JOHNSON CONTROLS...
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Page 5: Table Of Contents
Emergency Shutdown ............................ 28 Occupied Command ............................28 Alarm Outputs ..............................28 Pump Output ..............................28 VAV Heat ................................ 28 CTB1 Field Control Wiring (Inputs) ........................ 29 SECTION 4 - POST START-UP DATA ........................31 For technical assistance: ..........................33 JOHNSON CONTROLS... -
Page 6: List Of Figures
TABLE 2 - Analog Input Values ..........................22 TABLE 3 - WCSC LED Status Indicators ........................23 TABLE 4 - Digital Input Verification chart ........................23 TABLE 5 - Factory Run Tests ..........................24 TABLE 6 - Digital Outputs ............................27 TABLE 7 - Analog Outputs ............................27 JOHNSON CONTROLS... -
Page 7: Section 1 - User Interface
Login Prompt. When the user Login Prompt. is first presented with the Login Prompt, the password field is blank. If you need to change Level 1 or Level 2 JOHNSON CONTROLS... -
Page 8: Navigation
See Password section of this manual for the proper pro- cedure for entering the password. When the desired choice is displayed, press the key to save the new JOHNSON CONTROLS... -
Page 9: Section 2 - Introduction
Constant Volume uses a standard supply air fan mo- complete a successful startup. tor. Cooling/Heating operations are controlled by a hardwired or communicated zone sensor. Once operat- ing, supply air temperature is controlled to a supply air temperature setpoint. JOHNSON CONTROLS... - Page 10 FORM 145.05-SU7 ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY BLANK JOHNSON CONTROLS...
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Page 11: Section 3 - Pre Start-Up Checklist
FORM 145.05-SU7 ISSUE DATE: 10/31/2019 SECTION 3 - PRE START-UP CHECKLIST JOHNSON CONTROLS... - Page 12 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 13 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 14 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 15 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 16 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 17 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 18 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 19 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
- Page 20 FORM 145.05-SU7 SECTION 3 - PRE START-UP CHECkLIST ISSUE DATE: 10/31/2019 JOHNSON CONTROLS...
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Page 21: Vfd Supply Fan (When Installed)
Sets output maximum 2003 Max Current 1.1*In Sets maximum VFD output current 2007 Minimum Frequency 20 Hz 2008 Maximum Frequency 60 Hz 2202 Acceler Time 1 30 sec Sets Acceleration Rate 2203 Deceler Time 1 30 sec Sets Deceleration Rate JOHNSON CONTROLS... -
Page 22: Analog Input Verification
Pressure Suction F Pressure Discharge A Pressure Discharge B Pressure Discharge C Pressure Discharge D Pressure Discharge E Pressure Discharge F Duct Static Press 1 Duct Static Press 2 Vent Override Zone Temp Current Underfloor Slab Temp Underfloor Air Humidity JOHNSON CONTROLS... -
Page 23: Digital Input Verification
HW/Steam Frz Status NOTE 1: Digital Input operation can also be verified using the LED Status Indicator list. NOTE 2: The Safety Input Chain for circuit A shows Faulted until the compressor starts on 60 ton or smaller units. JOHNSON CONTROLS... -
Page 24: Factory Run Test Feature
After the fan starts to verify that the LED light at BI1 has lit or locate the Supply Fan Status in the DI sec- • UNDERWAY – indicates the test shown has start- tion of the SERVICE key to verify it changed from STOPPED to RUNNING. JOHNSON CONTROLS... -
Page 25: Water Flow Switch Test
If the discharge the test. and suction pressures remain the same, the rota- tion is not correct. Press the check key (√) if the • If signal does return in 90 Seconds, PASS the test. compressor rotation is correct. JOHNSON CONTROLS... -
Page 26: Damper Test (If Available)
2. Set the BYPASS DAMPER to 50%. not pump for 10 seconds. Wait 45 seconds and prompt message#1 5. Press the check key (√) if correct. ALL DAMPERS OPEN TO 50%? 6. Set the COMPRESSOR A LOAD output to 67%. JOHNSON CONTROLS... -
Page 27: Manually Forcing Digital And Analog Outputs
4. Change to 100%. This opens the valve when DI- RECT acting. When REVERSE acting this opens the valve. 5. Change to 0%. This closes the valve closed DI- RECT acting. When REVERSE acting this opens the valve. JOHNSON CONTROLS... -
Page 28: To Verify Condenser Actuator/Valve Operation
Removing the wire from the SD terminal allows any external normally closed switch safety devices to be installed in series and return power back to the SD terminal. When 24vac is missing from the SD termi- nal the UNIT-OVERALL STATUS displays LOCAL STOP. JOHNSON CONTROLS... -
Page 29: Ctb1 Field Control Wiring (Inputs)
9. In the AUTO position only the Shutdown terminal is provided 24vac to make the unit run. An occupancy command must be provided by hardwiring to OCC, communicating, or through the unit timeclock. FIGURE 2 - FIELD CONTROL WIRING - INPUTS JOHNSON CONTROLS... - Page 30 FORM 145.05-SU7 ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY BLANK JOHNSON CONTROLS...
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Page 31: Section 4 - Post Start-Up Data
11. If the zone temperature is 1.5 degrees above the OCCUPIED COOLING ZONE SETPOINT, the 8. The supply air temperature is compared to unit switches to OCCUPIED COOLING HIGH the SAT LOW and HIGH SETPOINTS in the mode. SETPOINTS key subsection COOLING. JOHNSON CONTROLS... - Page 32 Turning the OFF/AUTO/ON rocker switch to ON zone temperature rises above the OCCUPIED provides this signal. ZONE HEATING SETPOINTS. 16. The unit stays in the OCCUPIED mode, but switches to OCCUPIED STANDBY until the zone temperature drops again. JOHNSON CONTROLS...
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Page 33: For Technical Assistance
SETPOINTS key subsection HEATING. 7. If the return air temperature is less than the RE- TURN AIR HEATING SETPOINT by .5 degrees FOR TECHNICAL ASSISTANCE: Contact Johnson Controls, Applied Ducted Systems Product Technical Support (PTS) at Applied- DXTechSupport@jci.com. JOHNSON CONTROLS... - Page 34 JOHNSON CONTROLS...
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- Page 37 FORM 145.05-SU7 ISSUE DATE: 10/31/2019 THIS PAGE INTENTIONALLY BLANK JOHNSON CONTROLS...
- Page 38 © 2019 Johnson Controls | 100 JCI Way, York, Pennsylvania USA 17406-8469 | www.johnsoncontrols.com Subject to change without notice. | Form: 145.05-SU7 (1019) | Supersedes: 145.05-SU7 (412) | All rights reserved.
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