Thermo King 914970, Руководство пользователя

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Electronic Controls
76
16. Check voltage on 14T and 10T terminals.
a. Check for voltage on terminal 14T. 12
volts should be present. The heat relay
should be energized.
b. Check for voltage on terminal 10T. Zero
volts should be present. The speed relay
should be de-energized. The thermostat
module is in the eight minute High Speed
Lockout mode of operation.
17. At the end of eight minutes, the thermostat
module should automatically switch to high
speed heat. Check the voltage at terminal 10T
after the eight minute interval. 12 volts should
be present.
18. Connect pin 86 of the third relay to the 11
terminal in order to simulate the defrost relay.
Connect pin 85 of this relay to the positive (+)
terminal of the power source.
19. Place a jumper between the 12 terminal and
the negative (-) terminal of the power supply.
Place another jumper between the 12 terminal
and the 11 terminal. The relay should
energize.
20. Remove the jumper between the 12 terminal
and the 11 terminal. The relay should remain
energized.
21. Remove the jumper between the 12 terminal
and the negative (-) terminal of the power
supply. The relay should de-energize.