McQuay LMS User Manual

Page 2 of 24 / IM 439
Model Nomenclature
W LDD 1 070 D Z
Product Category
W = WSHP
Product Identifier
See box below
Design Series
1 = A Design
2 = B Deisgn
3 = C Design
4 = D Design
5 = E Design
Nominal Capacity
070 = 70,000
108 = 108,000
121 = 121,000
180 = 180,000
215 = 215,000
290 = 290,000
etc. . .
Coil Options
(None)
Voltage
D= 208-60-3
H= 230-60-3
K= 460-60-3
L= 575-60-3
N= 380-50-3
McQuay Product Identifiers
LDD = Std. Large Vertical/DDC Controls/Std. Range/Less Board LME = Std. Large Verical/Mark IV/Ext. Range
LDE = Std. Large Vertical/DDC Controls/Ext. Range LMH = High Static Large Vertical/Mark IV/Std. Range
LDL = Std. Large Vertical/DDC Controls/Ext. Range/Less Board LML = High Static Large Vertical/Mark IV/Ext. Range
LDS = Std. Large Vertical/DDC Controls/Std. Range LMS = Std. Large Vertical/Mark IV/Std. Range
Contents
Model Nomenclature .................................................... 2
Transportation and Storage ......................................... 2
Installation.................................................................. 3-6
Piping ............................................................................ 7
Cleaning and Flushing System ..................................... 8
Start-up ...................................................................... 8-9
Operating Limits ........................................................... 9
Electrical Data ............................................................... 9
Typical Wiring Diagrams ........................................ 10-13
Typical Mark IV/AC units ................................. 10-11
Typical MicroTech units .................................. 12-13
Unit Operation ............................................................ 14
Mark IV Sequence of Operation ................................. 15
Thermostat Connections ............................................ 16
Miscellaneous Options on Mark IV Units .............. 17-20
Field Installed Options on MicroTech Units ................ 21
Troubleshooting WSHP .............................................. 22
Maintenance ............................................................... 23

McQuay LMS Specifications

General

Brand	McQuay
Model	LMS
Category	Heat Pump
Language	English