Calorex monitair DH44 Series Owners & Installation Manual page 18

7.1 FEATURES OF THE PRINTED CIRCUIT BOARD
The Printed board, mounted in th e Electric Box has six small LEDs in th e bottom right hand
corner. These illuminate to show diff erent states and marked D1 to D6.
LED
LED D1 IS LIT IF THE INTERNAL HUMIDISTAT IS CALLING FOR DEHUMIDIFICATION AND THE
D1
REMOTE HUMIDISTAT SWITCH IS CLOSED.*
LED D2 IS LIT IF THE DEHUMIDIFIER IS NOT IN
D2
DEFROST AND BOTH HUMIDSTATS ARE ACTIVE
LED D3 IS LIT WHEN THE HP SWITCH IS CLOSED,
THERE IS NO DEFROST THE MACHINE IS CALLING
D3
FOR DEHUMIDIFICATION AND THE REMOTE
HUMIDISTAT SWITCH IS CLOSED.
LED D4 IS LIT WHEN THE LP AND HP SWITCHES
ARE CLOSED, THERE IS NO DEFROST. THE
D4
MACHINE IS CALLING FOR DEHUMIDIFICATION AND
THE REMOTE HUMIDISTAT SWITCH IS CLOSED.
D5 LED D5 IS LIT IF THE DEHUMIDIFIER IS ASKING FOR THE COMPRESSOR TO BE RUNNING.
D6 LED D6 IS LIT IF THE REMOTE ROOM THERMOSTAT IS CALLING FOR HEATING.
*THE REMOTE HUMIDISTAT IS CONSIDERED TO BE ACTIVE WHEN THE WIRE LINK IS FITTED TO
TERMINALS 5 AND 6 ON THE TERMINAL BLOCK SEE THE WIRING DIAGRAM
VOLT FREE TERMINALS
DH44A/DH66A
LED D2 IS LIT IF THE FAN IS RUNNING AND
THE DEHUMIDIFIER IS NOT IN DEFROST
LED D3 IS LIT WHEN THE HP SWITCH IS
CLOSED, AND THE MACHINE IS CALLING
FOR DEHUMIDIFICATION AND THE REMOTE
HUMIDISTAT SWITCH IS CLOSED.
LED D4 IS LIT WHEN THE LP AND HP
SWITCHES ARE CLOSED, THE MACHINE IS
CALLING FOR DEHUMIDIFICATION AND THE
REMOTE HUMIDISTAT SWITCH IS CLOSED.
Page 17
LEDs HERE
DH44AX/DH66AX
SD496251 iss 9