Carnes EK User Manual
COPYRIGHT © 2009 CARNES COMPANY
ALL RIGHTS RESERVED
SUPERSEDES 20104-E
20104-F, Page 1
SPECIFICATION SHEET
SINGLE DUCT AIR TERMINAL - w/HOT WATER REHEAT
PRESSURE DEPENDENT ELECTRIC CONTROLS
ER — CONTROL OPTION (ONE-STAGE)
EK — CONTROL OPTION (TWO STAGE)
24 VAC
CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: (608)845-6411 Fax: (608)845-6470 www.carnes.com
24V
COMMON
CONTROL DIAGRAM
SEQUENCE OF OPERATION
ON A CALL FOR COOLING, AIRFLOW WILL INCREASE AS THE
DAMPER OPENS TOWARDS THE MAXIMUM SETTING TO SATISFY
ROOM SET-POINT (SP).
ON A CALL FOR LESS COOLING, AIRFLOW WILL DECREASE AS THE
DAMPER CLOSES TOWARDS THE MINIMUM SETTING TO SATISFY
ROOM SET-POINT (SP).
AS THE DAMPER CLOSES, FIELD ADJUSTABLE CAMS WILL ACTIVATE
END SWITCHES WHICH WILL ENERGIZE UP TO TWO STAGES OF
REHEAT SEQUENCING.
THE “ER” OPTION HAS ONE END OF SWITCH TO ACTIVATE STAGE
ONE (H1).
THE “EK” OPTION HAS TWO END SWITCHES, ONE FOR EACH STAGE
ONE (H1) AND STAGE TWO (H2).
THE MAXIMUM AND MINIMUM SETTINGS ARE DETERMINED BY FIELD
ADJUSTED MECHANICAL STOPS.
TERMINALS R & Y MAKE ON TEMP RISE
TERMINALS R & W MAKE ON TEMP DROP
2
(HORIZONTAL MOUNT)
1
FOR MODELS AB (BYPASS) WITH
LEFT HAND CONTROLS (ER2C, EK2C),
“W” GOES TO THE “YELLOW” WIRE,
“Y” GOES TO THE “BLUE” WIRE.
*
*
ITEM PART NO. DESCRIPTION
1 AXBAB ACTUATOR (ONE END SWITCH)
1 AXBAC ACTUATOR (TWO END SWITCH)
2 AXWBE ELECTRIC THERMOSTAT
By Carnes
By Others
Optional
*
COPYRIGHT © 2009 CARNES COMPANY
ALL RIGHTS RESERVED
SUPERSEDES 20104-E
20104-F, Page 2
A2
A1
SPECIFICATION SHEET
SINGLE DUCT AIR TERMINAL - w/ELECTRIC REHEAT
PRESSURE DEPENDENT ELECTRIC CONTROLS
ER — CONTROL OPTION (ONE-STAGE)
EK — CONTROL OPTION (TWO STAGE)
CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: (608)845-6411 Fax: (608)845-6470 www.carnes.com
By Carnes
By Others
Optional
CONTROL DIAGRAM
SEQUENCE OF OPERATION
ON A CALL FOR COOLING, AIRFLOW WILL INCREASE AS THE
DAMPER OPENS TOWARDS THE MAXIMUM SETTING TO SATISFY
ROOM SET-POINT (SP).
ON A CALL FOR LESS COOLING, AIRFLOW WILL DECREASE AS THE
DAMPER CLOSES TOWARDS THE MINIMUM SETTING TO SATISFY
ROOM SET-POINT (SP).
AS THE DAMPER CLOSES, FIELD ADJUSTABLE CAMS WILL ACTIVATE
END SWITCHES WHICH WILL ENERGIZE UP TO TWO STAGES OF
ELECTRIC HEAT.
THE “ER” OPTION HAS ONE END OF SWITCH TO ACTIVATE STAGE
ONE (H1).
THE “EK” OPTION HAS TWO END SWITCHES, ONE FOR EACH STAGE
ONE (H1) AND STAGE TWO (H2).
THE MAXIMUM AND MINIMUM SETTINGS ARE DETERMINED BY FIELD
ADJUSTED MECHANICAL STOPS.
TERMINALS R & Y MAKE ON TEMP RISE
TERMINALS R & W MAKE ON TEMP DROP
2
(HORIZONTAL MOUNT)
1
FOR MODELS AB (BYPASS) WITH
LEFT HAND CONTROLS (ER2C, EK2C),
“W” GOES TO THE “YELLOW” WIRE,
“Y” GOES TO THE “BLUE” WIRE.
*
*
ITEM PART NO. DESCRIPTION
1 AXBAB ACTUATOR (ONE END SWITCH)
1 AXBAC ACTUATOR (TWO END SWITCH)
2 AXWBE ELECTRIC THERMOSTAT
*
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