12. Two Speed Fan with Discrete Fan Outputs Two Heat and Two Cool
FAN
MCR36719
C7250A MIXED AIR SENSOR
C7250A DISCHARGE AIR SENSOR
C7250A OUTDOOR AIR SENSOR
M7215A ECONOMIZER ACTUATOR
AT40 TRANSFORMER(S)
THIS APPLICATION PROVIDES AUTOMATIC CONTROL OF TWO STAGES OF DIRECT EXPANSION COOLING,
HEATING, AND INTEGRATED ECONOMIZER WITH TEMPERATURE LIMIT AND CHANGEOBOER (SEE APP GUIDE
FOR DETAILED SEQUENCE). CONFIGURER HAS THE ABILITY TO SET UP SETBACK, SETUP FEATURES THAT
WILL ENABLE BUILDING OWNER TO ACHIEVE ENERGY SAVINGS BY REDUCING FAN AND COOLING
EQUIPMENT OPERATION DURING UNOCCUPIED PERIODS. ADAPTIVE INTELLIGENT RECOVERY IS ALSO A
STANDARD FEATURE. IT PERMITS CONTROLLED OPERATIONAL TRANSITION OF COOLING EQUIPMENT
FROM UNOCCUPIED TO OCCUPIED TO 1] GUARD AGAINST EQUIPMENT OVERUSE AND 2] HELP CONTROL
POTENTIAL ELECTRICAL SPIKES RESULTING IN DEMAND CONTROL UTILITY CHARGES. MULTISPEED FAN
OPTION PERMITS CUSTOMIZED CONTROL OF FAN SPEED AND CAN BE INDEXED TO SPECIFIC MODES.
THERE ARE TWO DISCRETE MODES (LOW FAN, REGULARY FAN) THAT CAN BE COUPLED WITH MULTIPLE
CONTROL MODES. SUCCESSFULLY IMPLMEMENTED ENERGY COST AVOIDANCE IS A PROBABLY OUTCOME.
LCBS CONNECT – INFORMATION
OS#
DESCRIPTION
YCRL6438SR LCBS CONTROLLER (WITH WALL MODULE)
LCBS CONNECT – COMPONENTS SHOWN
SYLK BUS
24 VAC
CONTROLLER
POWER
LCBS
CONTROLLER
WALL
MODULE
1 2 3 4 5 6 78
9
10 11 12 13 14 15 16 17 18 19 20
21 22 23
24 25
26
27 28
29 30 31 32 33 34 35 36 37 38 39 40
24VAC
COM
24VDC
24VAC
R
W1
W2
W3 OB G-L
Y1
Y2
Y3 G-L
RH
RC
COM AUX
DO1 AUX
G
UI-1
DI-2
DI-3
UI-4
UI-5
UI-6
UI-2
UI-3
COM
COM
COM
DI-4
DI-1
COM
AO-3
AO-1
COM
A0-2
COM
NET-1
NET-2
S-BUS
S-BUS
SHIELD
EGND
LCBS
CONTROLLER
HVAC SYSTEM
24 VAC POWER
EXISTING
TRANSFORMER
C7250A
MA SENSOR
C7250A
DA SENSOR
C7250A
OA SENSOR
ACTUATOR
24 VAC
POWER
M7215A
ECONOMIZER
ACTUATOR
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