McQuay WMC Service Manual

Pre-Start Checklist – Centrifugal Chillers
Must be completed, signed and returned to McQuay International service dept. at least 2 weeks prior to requested start date.
start date.
Job Name
Installation Location
Customer Order Number
Model Number(s)
G.O. Number(s)
Chilled Water
Yes
No
N/A
Initials
Piping Complete
Water System – flushed, filled, vented; Water treatment in place
Pumps installed and operational (rotation checked, strainers installed and cleaned)
Controls operational (3-way valves, face/bypass dampers, bypass valves, etc.)
Water system operated and tested; flow meets unit design requirements
Condenser Water
Yes
No
N/A
Initials
Cooling tower flushed, filled, vented; Water treatment in place
Pumps installed and operational (rotation checked, strainers installed and cleaned)
Controls (3-way valves, bypass valves, etc.) operable per IM/IOM
Water system operated and flow balance to meet unit design requirements
Electrical
Yes
No
N/A
Initials
115 volt service completed, but not connected to control panel (remote mouned starters)
Line Power Leads connected to starter; load leads(b) run from starter to compressor, ready for
connection by Service (Do not connect load leads to starter or compressor terminals). (
See Notes 1 & 4)
All interlock wiring complete and compliant with McQuay International specifications
Starter complies with McQuay International specifications
*Oil cooler solenoid wired to control panel as shown on wiring diagram
(See Notes)
Pump starter and interlocks wired
Cooling tower fans and controls wired
Wiring complies with National Electrical Code and local codes
(See Note 4)
Condenser pump starting relay (CP1,2) installed and wired (See Note 3)
Miscellaneous
Yes
No
N/A
Initials
*Oil cooled water piping complete. (Units with water-cooled oil coolers only)
Relief valve piping complete (per local codes)
Thermometers, wells, gauges, control, etc., installed
Minimum system load of 80% capacity available for testing/adjusting controls
Document Attached: Technical Breakdown from Daikin Tools
Document Attached: Final Order Acknowledgement
Notes: The most common problems delaying start-up and affecting unit reliability are:
1. Field installed compressor motor power supply leads too small. Questions: Contact the local McQuay International sales representative. State size, number and
type of conductors and conduits installed:
a. From Power supply to starter
b. From starter to chiller unit (remote mounted)
2. Centrifugal chillers with water cooled oil coolers must have a 115 volt normally closed water solenoid valve installed in the oil cooler water supply line. Daikin
Applied recommends ASCO Type 8210B27 solenoid valve or approved equal and 40-mesh strainer. Daikin Applied does not supply these components.
3. A 115-volt field-supplied relay (CP1,2) must be used to start/stop condenser water pump on most applications. Cold condenser water must not flow through
condenser during compressor off cycle. Provisions have been made in control center for connecting CP relay, but must not have a rating in excess of 100 VA.
4. Refer to NEC Article 430-22 (a) *Does Not Apply to Magnetic Bearing Chillers (WMC/WME)
Contractor Representative
McQuay International Sales Representative
Signed:
Signed:
Name:
Name:
Company:
Company:
Date:
Date:
Phone/Email:
Phone/Email:
©2014 Daikin Applied Form SF01017 05AUG2014
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McQuay WMC Specifications

General

Brand	McQuay
Model	WMC
Category	Chiller
Language	English