Johnson Controls MAHP18B21S - Figure 35. Air Inlet and Outlet Thermistors

PMGB0406B rev.1
61
1/1
32 to
32 to
1
/
16
16
(0.6 to 1)
(0.6 to 1)
1/ 2
(12)
(12)
Cable Holder
Cable Holder
2-
2-
3
/
4
to 4-
to 4- 5
/
16
16
(70 to 110)
(70 to 110)
Cable Clamp
Cable Clamp
Ø
1/4
(6)
(6)
Thermistor
Thermistor
For Air Inlet and Air Outlet Thermistors
For Air Inlet and Air Outlet Thermistors
Thickness of Cable Holder
Thickness of Cable Holder
NOTE:
When ¿ tting the air inlet and outlet thermistor, remember that they must be secured correctly, in an adequate
place to avoid external inÀ uences, like ambient conditions, and where the air temperature is signi¿ cant.
NOTES:
1. Pay attention to the attaching direction and position of the lead wires.
2. Make sure that the wires are spaced appropriately and ¿ rmly fastened to ensure against contact to runner,
electrical short circuit, sparks, and ¿ re.
(1) Remove both upper and lower front panels of the air handler to access the blower and coil compartment.
(2) Remove the control box cover with the four screws.
(3) Pass the two connector side of thermistor cable through the connecting hole and connect the thermistor
connectors to the corresponding connectors on the PCB.
(4) Route the thermistor probe end inside the air handler by passing through the connecting hole on the right
side of the top panel of the air handler.
(5) Attach the thermistor probes to position indicated in the ¿ gure below.
In case that the thermistors supplied with the DX Kit are not long enough, please make sure that
the length extension is properly done avoiding the sensing distortion and that the joint is properly
insulated to avoid any electrical failure.
Figure 35. Air Inlet and Outlet Thermistors
Cable Clamp (Accessory)
Cable Holder (Accessory)
Thermistor (Accessory)
(Ins)DX-Kit4e-rev1.indd61
(Ins)DX-Kit4e-rev1.indd61
2016/11/2515:32:59
2016/11/2515:32:59