Calorex PPT12 - 19 Logic Diagram

Technical Manual
PPT8/12/16/22LX/LY SLIMLINE
Page 116
SD638160 ISSUE 22d
®
Calorex Heat Pumps Ltd. · The Causeway, Maldon, Essex CM9 4XD, UK
- FAN - WARNING - DEFROST - HEAT DEMAND (COMPRESSOR)
AUX
"OFF"
"noF"
"to"
"PrA"
DISPLAY SYMBOLS
- WATER PUMP - MACHINE OFF - NO WATER FLOW - CURRENT OVERLOAD - HP/LP SWITCH ALARM
SET POINT 26ºC
ADJUSTABLE
SET POINT BETWEEN
10ºC AND 40ºC
25ºC
OFF
ON
r.d
ACTUAL
POOL WATER
TEMPERATURE
SET POINT = 26ºC
TECNOLOGIC POOL TEMPERATURE STAT
NOTES
1. POOL CONTROLLER DISPLAY SYMBOLS ARE SHOWN BELOW.
2 .WHEN MACHINE IS ON DEFROST FAN STOPS BUT COMPRESSOR AND PUMP REMAIN ON DEFROST SYMBOL WILL BE FLASHING ON THE DISPLAY.
3. IF REMOTE ON/OFF LINK (TERMINAL 14 AND 15) IS REMOVED MACHINE WILL NOT RUN AND DISPLAY WILL ALTERNATE BETWEEN "OFF" AND TEMPERATURE. 4. IF EITHER 'HP' OR 'LP' SWITCHES CUT OUT THEN MACHINE STOPS WITH MAIN DISPLAY ALTERNATING BETWEEN "PrA" AND POOL WATER TEMPERATURE. SYMBOLS DISPLAYED WILL SHOW FAN FLASHING, HEAT DEMAND FLASHING AND WARNING SYMBOL ON.
5. IN CASE OF COMPRESSOR DRAWING TOO MUCH CURRENT, CONTACTOR OVERLOAD
(FITTED TO PPT16 & PPT22 MODELS ONLY) WILL CUT-OUT STOPPING THE COMPRESSOR AND FAN. THE MAIN DISPLAY WILL ALTERNATE BETWEEN POOL WATER TEMPERATURE AND "to". FAN FLASHING, HEAT DEMAND FLASHING AND WARNING SYMBOLS WILL ALSO BE PRESENT ON DISPLAY.
6. IF WATER FLOW SWITCH BREAKS THEN FAN AND COMPRESSOR BOTH STOP AND
DISPLAY ALTERNATES BETWEEN "noF" AND WATER TEMPERATURE WITH FAN & HEAT DEMAND SYMBOLS BOTH FLASHING.
YES
COMPRESSOR OFF
FAN OFF
MAIN DISPLAY SHOWS
POOL WATER TEMP.
FLOW CHART SHOWING HEALTHY MACHINE
IS
WATER TEMP
BELOW SET
POINT
MAIN DISPLAY SHOWS
POOL WATER TEMP.
DISPLAY SYMBOLS:- FAN FLASHING HEAT DEMAND FLASHING 'AUX' ON
COMPRESSOR STARTS
FAN STARTS
DISPLAY SYMBOLS:- FAN ON HEAT DEMAND ON 'AUX' ON
EXTERNAL
OUTPUT WIRING TO
TB18 & TB19
OUTPUT WIRING TO
NO
YES
NO
M/C IS NOT SUPPLIED
WITH CONTINUOUS
WATER FLOW
M/C IS SUPPLIED
WITH CONTINUOUS
WATER FLOW
NO
HAS 6 MIN
COMPRESSOR
START DELAY TIMER,
TIMED OUT
YES
MAINS POWER ON
MACHINE ON
P644750DRG No.
SWITCHED OUTPUT AT
TB18 & TB19 BROKEN
HAS 60 MIN
PUMP START
DELAY TIMER,
TIMED OUT
YES
PUMP ON
NO
MAIN DISPLAY SHOWS
POOL WATER TEMP.
DISPLAY SYMBOLS:- FAN FLASHING HEAT DEMAND FLASHING 'AUX' ON
NO
YES
IS
PUMP ALREADY
RUNNING
SWITCHED OUTPUT AT
TB18 & TB19 MADE
NO
YES
COMPRESSOR OFF
FAN OFF
DISPLAY ALTERNATES
BETWEEN "noF"
& WATER TEMP
PUMP OFF
IS WATER TEMP
BELOW SET POINT
YES
DISPLAY SYMBOLS:- 'AUX' ON
HAS 3 MIN
WATER TEMP
SAMPLING TIMER,
TIMED OUT
COMPRESSOR STARTS
FAN STARTS
DISPLAY SYMBOLS:- FAN ON HEAT DEMAND ON 'AUX' ON
NO
HAS 6 MIN
COMPRESSOR START
DELAY TIMER,
TIMED OUT
YES
IS
WATER TEMP
BELOW SET POINT
NO
YES
NO
DISPLAY SYMBOLS:- FAN FLASHING HEAT DEMAND FLASHING 'AUX' OFF
IS
WATER TEMP
BELOW SET POINT
NO
YES
DISPLAY SYMBOLS:- FAN OFF HEAT DEMAND OFF 'AUX' OFF
DISPLAY SYMBOLS:- FAN OFF HEAT DEMAND OFF 'AUX' ON
COMPRESSOR OFF
FAN OFF
DISPLAY ALTERNATES
BETWEEN "noF"
& WATER TEMP
PUMP OFF
SWITCHED OUTPUT AT TB18 & TB19 BROKEN
SWITCHED OUTPUT AT
TB18 & TB19 MADE
19.0 Logic Diagram