SECTION 5 - SERVICE
JOHNSON CONTROLS
223
FORM 160.87-OM1
ISSUE DATE: 8/24/2018
5
FIGURE 88 -
LOW VOLTAGE DIGITAL INPUTS
24VAC
Factory Mounted Evaporator
Thermal-Type Flow Sensor
(note 1)
3
2
4
2
4
2
4
1
24VAC
Factory Mounted Condenser
Thermal-Type Flow Sensor
(note 1)
3
1
24VAC
Factory Mounted
Heating Condenser
Thermal-Type Flow Sensor
(note 1)
3
1
Not Used
NOTE:
1. On new production chillers after June 2009, the Thermal type flow sensors are connected to Microboard J14 as shown above. Program
Jumpers JP10 through JP12 must be positioned on pins 2-3 and software version C.OPT.01.21.307 (and later) is required. On new produc-
tion chillers prior to June 2009, the Thermal type flow sensors are connected to Microboard J7 (Refer to
Figure 86 on page
).
LD22057