Figure 10 Low Voltage Wiring; 1-Stage A/C With Optional Electric; Economizer; Heat With Econwm Style Economizer - Bard W12AAA Installation Instructions Manual

4
8403-058
C
(TH5220D1151)
5
Thermostat
C
part #8403-060
A/C UNIT
C
24V TERMINALS

Economizer

Wiring Harness
Manual 2100-618
Page 16 of 21
FIGURE 10
LOW VOLTAGE WIRING
1-STAGE A/C WITH OPTIONAL ELECTRIC HEAT
WITH ECONWM STYLE ECONOMIZER
Low Voltage Wiring Diagram
3
G R RC Y2
Y
Y2
G R Y1
YO/D W1/E
Y Y1 Y2 W1
G R
Must be energized to enable minimum position. NOTE: Economizer Control Default Setting
2
is 10V (100%). Depending upon application may require setting to lower value.
Factory Jumper Installed.
3
Change "system type", set up function 1, from 5 (2 heat/ 1 cool heat pump)
4
to 6 (2 heat/ 2 cool conventional).
Change model configuration from heat pump to heat/cool, and must be configured for
5
economizer for YO/D output to be active as first stage cooling.
W W2
2
A
W2
W2 1 2 3
2
BROWN/WHITE
L O/B
A E F
MIS-3593