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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.
Summary of Contents for 914970
Page 3: ...3...
Page 10: ...Table of Contents 10...
Page 40: ...Operating Instructions 40...
Page 82: ...Electronic Controls 82...
Page 92: ...Electrical Maintenance 92...
Page 124: ...Refrigeration Maintenance 124...
Page 140: ...Hilliard Clutch Maintenance 140...
Page 160: ...Refrigeration Diagrams 160...
Page 163: ...Index 163 W wiring 85 wiring diagrams 165...
Page 164: ...Index 164...
Page 166: ...Wiring and Schematic Diagrams Index 166...
Page 167: ...167 Cab Control RD Wiring Diagram...
Page 168: ...168 RD w o Thermostat Cab Control Schematic...
Page 169: ...169 RD Cab Box Wiring Diagram...
Page 170: ...170 RD Cab Control w Thermostat Schematic Diagram...
Page 171: ...171 RD 50 STD 3 Phase Wiring Diagram Page 1 of 2...
Page 172: ...172 RD 50 STD 3 Phase Wiring Diagram Page 2 of 2...
Page 173: ...173 RD 50 STD 3 Phase Schematic Diagram Page 1 of 2...
Page 174: ...174 RD 50 STD 3 Phase Schematic Diagram Page 2 of 2...
Page 175: ...175 RD 30 STD Wiring Diagram Page 1 of 2...
Page 176: ...176 RD 30 STD Wiring Diagram Page 2 of 2...
Page 177: ...177 RD 30 STD Schematic Diagram Page 1 of 2...
Page 178: ...178 RD 30 STD Schematic Diagram Page 2 of 2...
Page 179: ...179 RD 30 C S Wiring Diagram Page 1 of 2...
Page 180: ...180 RD 30 C S Wiring Diagram Page 2 of 2...
Page 181: ...181 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 182: ...182 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 183: ...183 RD 50 C S 3 Phase Wiring Diagram Page 1 of 2...
Page 184: ...184 RD 50 C S 3 Phase Wiring Diagram Page 2 of 2...
Page 185: ...185 RD w CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 186: ...186 RD w CYCLE SENTRY Schematic Diagram Page 2 of 2...