Unit Description
31
Electric Operation*
Two Compartment (with Door Sentry II)
Thermostat Relays
Ind
F Door
R Door
F
Fans
R
Fans
Elec.
Motor
Solenoids
Zone 1
Zone 2
1K
2K
DR
R1
K
R2
K
RD
R
LL
S
HG
S
SL
S
R
LLS
RH
G
S
RSL
S
CI
S
D
E
D
D
E
D
F-COOL
CLOSED CLOSED
ON
ON
ON
E
D
D
E
D
D D
COOL
COOL
R-COOL
D
D
D
D
D
D
F-COOL
CLOSED CLOSED
ON
ON
ON*
E
D
D
E
D
D D
COOL
COOL
R-COOL
E
D
D
E
D
D
F-HEAT
CLOSED CLOSED
OFF
OFF
OFF
E
E
D
D
D
D
E
NULL
NULL
R-HEAT
E
E
D
E
E
D
F-HEAT
CLOSED CLOSED
ON
ON
ON
E
E
D
E
E
D
E
HEAT
HEAT
R-HEAT
E
D
D
E
D
D
F-HEAT
OPEN
CLOSED
OFF
OFF
OFF
D
D
D
E
E
D
E
NULL
NULL
R-HEAT
E
D
D
E
D
D
F-HEAT
CLOSED
OPEN
OFF
OFF
OFF
E
E
D
D
D
D
E
NULL
NULL
R-HEAT
E
D
D
E
D
D
F-HEAT
OPEN
OPEN
OFF
OFF
OFF
E
E
D
D
D
D
E
NULL
NULL
R-HEAT
E
E
D
D
E
D
F-HEAT
OPEN
CLOSED
OFF
ON
ON
D
D
E
E
D
D D
HEAT
COOL
R-COOL
D
D
D
E
D
D
F-COOL
OPEN
CLOSED
OFF
OFF
OFF
D
D
D
E
E
D
E
COOL
NULL
R-HEAT
D
D
D
D
E
E
F-COOL
CLOSED
OPEN
ON
OFF
ON*
E
D
D
D
D
D D
COOL
DEF
R-DEF
D
D
D
D
E
E
F-COOL
OPEN
CLOSED
OFF
OFF
ON
D
D
D
E
E
D
E
COOL
DEF
R-DEF
D
E
E
D
D
D
F-DEF
OPEN
CLOSED
OFF
ON
ON*
D
E
D
E
D
D
E
DEF
COOL
R-COOL
D
E
D
D
D
D
F-COOL
CLOSED
OPEN
ON
OFF
ON
E
D
D
D
D
D D
COOL
COOL
R-COOL
D
E
E
E
E
D
F-DEF
CLOSED
OPEN
OFF
OFF
ON
E
E
D
D
D
D
E
DEF
COOL
R-COOL
* The electric motor will continue to run if it is running when these combinations of thermostat demands occur. The electric
motor will not start to run if these combinations of thermostat demands occur while the electric motor is off and the
condensing unit is in null.
* After the condensing unit has shifted to null and the electric motor has shut off, one of the speed relays (2K or R2K) must
energize to start the electric motor.
Summary of Contents for 920000
Page 4: ......
Page 10: ...Table of Contents 10...
Page 22: ...Specifications 22...
Page 41: ...Unit Description 41 Unit Photographs Figure 12 Front View Figure 13 Top View ARD026 AGA267...
Page 42: ...Unit Description 42 Figure 14 Engine Side Door Open ARD041...
Page 76: ...Electrical Maintenance 76...
Page 132: ...Hilliard Clutch Maintenance 132...
Page 134: ...Structural Maintenance 134...
Page 146: ...Refrigeration Diagnosis 146...
Page 148: ...Remote Evaporator Specifications 148...
Page 150: ...Remote Evaporator Maintenance Inspection Schedule 150...
Page 154: ...Remote Evaporator Unit Description 154...
Page 158: ...Remote Evaporator Structural Maintenance 158...
Page 160: ...Remote Evaporator System Diagnosis 160...
Page 164: ...Wiring and Schematic Diagrams Index 164...
Page 165: ...165 MD RD MT Model 30 w In Cab Schematic Diagram Page 1 of 2...
Page 166: ...166 MD RD MT Model 30 w In Cab Schematic Diagram Page 2 of 2...
Page 167: ...167 MD RD MT Model 30 w In Cab Wiring Diagram Page 1 of 3...
Page 168: ...168 MD RD MT Model 30 w In Cab Wiring Diagram Page 2 of 3...
Page 169: ...169 MD RD MT Model 30 w In Cab Wiring Diagram Page 3 of 3...
Page 170: ...170 MD RD MT Model 30 w In Cab CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 171: ...171 MD RD MT Model 30 w In Cab CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 172: ...172 MD RD MT Model 30 w In Cab CYCLE SENTRY Wiring Diagram Page 1 of 3...
Page 173: ...173 MD RD MT Model 30 w In Cab CYCLE SENTRY Wiring Diagram Page 2 of 3...
Page 174: ...174 MD RD MT Model 30 w In Cab CYCLE SENTRY Wiring Diagram Page 3 of 3...
Page 175: ...175 MD RD MT Model 30 CYCLE SENTRY Wiring Diagram Page 1 of 3...
Page 176: ...176 MD RD MT Model 30 CYCLE SENTRY Wiring Diagram Page 2 of 3...
Page 177: ...177 MD RD MT Model 30 CYCLE SENTRY Wiring Diagram Page 3 of 3...
Page 178: ...178 MD RD MT Model 50 w In Cab Schematic Diagram Page 1 of 2...
Page 179: ...179 MD RD MT Model 50 w In Cab Schematic Diagram Page 2 of 2...
Page 180: ...180 MD RD MT Model 50 w In Cab Wiring Diagram Page 1 of 3...
Page 181: ...181 MD RD MT Model 50 w In Cab Wiring Diagram Page 2 of 3...
Page 182: ...182 MD RD MT Model 50 w In Cab Wiring Diagram Page 3 of 3...
Page 183: ...183 MD RD MT Model 50 w In Cab CYCLE SENTRY Schematic Diagram Page 1 of 2...
Page 184: ...184 MD RD MT Model 50 w In Cab CYCLE SENTRY Schematic Diagram Page 2 of 2...
Page 185: ...185 MD RD MT Model 50 w In Cab CYCLE SENTRY Wiring Diagram Page 1 of 3...
Page 186: ...186 MD RD MT Model 50 w In Cab CYCLE SENTRY Wiring Diagram Page 2 of 3...
Page 187: ...187 MD RD MT Model 50 w In Cab CYCLE SENTRY Wiring Diagram Page 3 of 3...
Page 188: ...188 MD RD MT Model 50 CYCLE SENTRY Wiring Diagram Page 1 of 3...
Page 189: ...189 MD RD MT Model 50 CYCLE SENTRY Wiring Diagram Page 2 of 3...
Page 190: ...190 MD RD MT Model 50 CYCLE SENTRY Wiring Diagram Page 3 of 3...