McQuay MWM Service Manual page 28

MCQUAY Service Guide Book
L2 Models
Two selections are available:
a. Fan ON:
- If the indoor coil temperature > 40°C, the
indoor fan will run at speed.
- If the indoor coil temperature crosses 37°C,
the indoor fan will run at low speed.
- If the indoor coil temperature <18°C, the
indoor fan will stop.
b. Fan OFF
- If the indoor coil temperature >40°C, the
indoor fan will run at set speed.
- If the indoor coil temperature crosses 37°C,
the indoor fan will run at low speed.
- If indoor coil temperature <30°C, the indoor
fan will stop.
.
For example, WSHP single compressor with Fan
ON for hot keep selection:
Place the shunt jumpers on HT_KP (Pin 1 & 2) &
MODEL (Pin 1& 2).
For L208A jumper setting
Pin 1&2
Pin 2&3
Open
For LWS2.0 jumper setting
Pin 1&2
Pin 2&3
Open
Summary of the jumpers setting for both LWS2.0 and L208A
L208A / LWS2.0 models
There are 2 tables setting for HT_KP & MODEL
jumpers as shown as below.
MODEL HT_KP
MS ON
INTVL OFF
ALWY ON -
MODEL HT_KP
Single ON
Tandem OFF
DX INTVL
27
Controller Configuration