LEGEND
FUNCTION
USER ADJUSTABLE CONTROLS
DT1
DIGITAL SEQUENCE TIMER - HUMIDIFY & HEATING.
DT2 TO DT4 (DT5 & DT6 IF FITTED)
DIGITAL SEQUENCE TIMERS - DEHUMIDIFY & HEATING/EXHAUST.
S1
SET POINT CHECK SWITCH/KNOB (AIR TEMPERATURE).
S2
SET POINT CHECK SWITCH/KNOB (RH%.
S3
LAST STAGE CONTINUOUS RUN SWITCH
D1
AIR TEMPERATURE DISPLAY.
D2
RELATIVE HUMIDITY % DISPLAY.
AS1 TO AS4 (AS5 & AS6 IF FITTED)
AIR TEMPERATURE STAGE STAT SETTINGS.
RH1 TO RH4 (RH5 & RH6 IF FITTED)
RELATIVE HUMIDITY STAGE STAT SETTINGS.
PIN A
PIN B
MODE OPTION PINS A,B,C,& D
IN
IN
ALLOWS AIR HEATING AS REQUIRED WHEN EXHAUST FANS OFF
REGARDLESS OF DEHUMIDIFIER.
IN
OUT
ONLY ALLOWS AIR HEATING WHEN EXHAUST FANS & DEHUMIDIFIER OFF.
EITHER OUT
OUT
AIR HEATING NOT ALLOWED AT ALL (EXCEPT STAGE 1)
OR OUT
IN
NOTE:- THE ABOVE ONLY APPLIES TO STAGES 2-6 (DT2-DT6) PINS C
& D GIVE EXACTLY THE SAME OPTIONS AS A & B BUT FOR THE SLAVE
DEHUMIDIFIER (IF FITTED).
CONTROL RELAYS
R1
WHEN STAGE 1 FINISHED THIS RELAY ALLOWS STAGE 2 TIMER TO RUN IF
REQD,TO CONTROL TEMP & RH VIA AS2 & RH2.
R2
WHEN STAGE 2 FINISHED THIS RELAY ALLOWS STAGE 3 TIMER TO RUN IF
REQD,TO CONTROL TEMP & RH VIA AS3 & RH3.
R3
WHEN STAGE 3 FINISHED THIS RELAY ALLOWS STAGE 4 TIMER TO RUN IF
REQD,TO CONTROL TEMP & RH VIA AS4 & RH4.
R4
IF NO STAGE 5 FITTED, THIS RELAY BRINGS UP SEQUENCE FINISHED LIGHT
(& REMOTE FINISHED INDICATOR IF FITTED).
R5 (IF FITTED)
WHEN STAGE 5 FINISHED THIS RELAY ALLOWS STAGE 6 TIMER TO RUN IF
REQD,TO CONTROL TEMP & RH VIA AS6 & RH6.
R6 (IF FITTED)
WHEN STAGE 6 FINISHED THIS RELAY BRINGS UP SEQUENCE FINISHED
LIGHT (& REMOTE FINISHED INDICATOR IF FITTED).
R7
START/STOP BUTTON LATCHED RELAY,ALLOWS PRIMARY FANS
(RECIRCULATION FANS & DEHUMIDIFIER FANS) TO RUN. PASSES CONTROL
TO START DELAY TIMER (T1).
R8
MAIN SYSTEM CONTROL RELAY. OPERATES AFTER PRIMARY FANS DELAY,
TO ALLOW STAGES TO OPERATE.
R9
WHEN EXHAUST FANS OPERATE DISABLES HEATING.
R10
WHEN MASTER DEHUMIDIFIER FAN O/LOAD CUTS OUT THIS RELAY
PREVENTS MASTER HEATER, HUMIDIFIER & DEHUMIDIFIER COMPRESSOR
FROM OPERATING.
R11
IF MASTER HEATER LIMIT STATS OPEN THIS RELAY PREVENTS ALL MASTER
& SLAVE HEATER, HUMIDIFIER & DEHUMIDIFIER COMPRESSORS FROM
RUNNING.
R12
AS R10 FUNCTION BUT FOR SLAVE FAN, DEHUMIDIFIER, HEATER,
HUMIDIFIER ETC.
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