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PG2021 Global HAHU-VP-ECM-005
c) The range of Ts is 16 - 30ºC.
d) Indoor fan speed can be adjusted to low, medium, high and auto.
DEHUMIDIFICATION MODE
a)
MTV1 is turned on; Ts=24ºC;
b)
If Tr ≥ 25ºC for 30S, DA2 is 1.5Vdc. Fan is running at auto speed.
c)
If 16ºC≤ Tr < 25ºC, DA2 is 2.5Vdc. Fan is running at auto speed.
d)
If Tr < 16ºC, DA2 is 3.5Vdc. Fan is running at auto speed.
AUTOMODE
Fan is turned on at medium speed. Check Tr and Ts in 30S;
if Ts>Tr+3ºC for 30S, the unit is turned on in heat mode;
if Tr-3 ºC<Ts<Tr+3 ºC for 30S, the unit is turned on in fan mode;
If Ts<Tr-3 ºC, , the unit is turned on in cool mode;
If the unit working mode is confirmed, it cannot change.
FOR 2-PIPE AND 4-PIPE SYSTEMS
PRO (N/O signal input)
When Modbus 100004=0;
The unit is on:
PRO input is closed for 60S, the unit is turned off.
PRO input is open for 60S, the unit is turned on.
When Modbus 100004=1;
1)
The unit is on or standby, PRO input is open or closed, the unit is kept original state;
2)
The unit is off,
PRO input is closed for 30S, MTV1 is turned on, DA2 is open at double of minimum setting (Modbus 300027 setting), Fan is
turn on at low speed;
PRO input is opened for 30S, MTV1 is off, DA2 is 0Vdv, Fan is turn off.
3)
In period of PRO closed time, if unit receives instruction from remote handset, wired wall pad or Modbus, the unit
will work according to the instruction at once.
SLEEP MODE
SLEEP mode can only be set when the unit is in COOL or HEAT mode.
In COOL mode, after SLEEP mode is set, the indoor fan will run at auto speed and Ts will increase by 0.5 º C for every
30mins.
In HEAT mode, after SLEEP mode is set, the indoor fan will run at auto speed and Ts will decrease by 0.5 ºC for every 30
minutes.
Sleep mode is turned off, the setting temperature resumes and Fan is changed to setting speed.
DA1 0-10vdc control signals
DA1 output is set by 300022 when fan is set at high speed
DA1 output is set by 300021 when fan is set at medium speed;
DA1 output is set by 300020 when fan is set at low speed;
When fan is set auto mode, if 300048=0, DA1 output is calculated by Tr/Ts PID calculation. If 300048=1, DA1 output is
calculated by ESP PID calculation.
DRAIN PUMP (IF INSTALLED)
In cooling mode, if MTV1 is turned ON, WP is turned ON. If MTV1 is turned OFF or unit working mode is changed, WP will be
turned OFF after 5 minutes.
If the system is turned off at the circuit breaker (or main power supply), the drain pump function is off.
FLOAT SWITCH (IF INSTALLED)
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
