Two Heat Two Cool Integrated Economizer Differential Enthalpy Changeover And Temperature Limit - Honeywell LCBS Applications Manual

LCBS CONNECT SOLUTION
6. Two Heat Two Cool Integrated Economizer Differential Enthalpy
Changeover and Temperature Limit
TWO HEAT TWO COOL INTEGRATED ECONOMIZER DIFFERENTIAL ENTHALPY
BUILDING NAME
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
LCBS
CONTROLLER
1 2 3 4 5 6 7 8
24 VAC
SYLK BUS
CONTROLLER
POWER
LCBS
CONTROLLER
WALL
MODULE
LCBS CONNECT – INFORMATION
THIS APPLICATION PROVIDES AUTOMATIC CONTROL OF TWO STAGES OF GAS OR ELECTIR HEAT, TWO
STAGES OF DIRECT EXPANSION COOLING, AND INTEGRATED ECONOMIZER WITH DIFFERENTIAL ENTHALPY
CONTROL AND HIGH TEMPERATURE LIMIT (SEE APP GUIDE FOR HIGH LIMIT (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 EQUIPMENT OPERATION DURING
UNOCCUPIED PERIODS. ADAPTIVE INTELLIGENT RECOVERY IS ALSO A STANDARD FEATURE. IT PERMITS
CONTROLLED OPERATIONAL TRANSITION OF HEATING AND 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. SYSTEM SUPPLY FAN AUTOMATICALLY
OPERATES IN A CONTINUOUS MANNER DURING OCCUPIED PERIODS AND CYCLES ON A CALL FOR HEATING
OR COOLING DURING UNOCCUIPED PERIODS TO MEET THE NEED OF PREVAILING BUILDING CODES.
31-00118EFS—01
CVAHU RTU NAME
9 10 11 12 13 14 15 16 17 18 19 20
34
DATE
M7215A
ECONOMIZER
C7250A
ACTUATOR
MA SENSOR
C7250A
DA SENSOR
C7400S SYLK OUTSIDE AIR
ENTHALPY SENSOR
C7400S SYLK RETURN AIR
ENTHALPY SENSOR
COOL 1
COO COOL 2
FAN
HEAT 1
HEAT 2
LCBS CONNECT – COMPONENTS SHOWN
OS# DESCRIPTION
YCRL6438SR LCBS CONTROLLER (WITH WALL MODULE)
C7250A MIXED AIR SENSOR
C7250A OUTDOOR AIR SENSOR
C7250A DISCHARGE AIR SENSOR
M7215A ECONOMIZER ACTUATOR
AT40A TRANSFORMER (SIZE APPROPRIATELY)
ACTUATOR
24 VAC POWER
HVAC SYSTEM
24 VAC POWER
EXISTING
TRANSFORMER
MCR36713