MDS COMMISSIONING

COMMISSIONING Address Setting A-series outdoor unit PCB DIP switch S2 A-series outdoor unit PCB K1, K2 Button Press K2 for 5 seconds to enter parameter set mode LCD display “- - - -” Enter the password, 0755 Set the no. of indoor units DIP switch S1

COMMISSIONING A-series outdoor unit PCB 4 ON (1) ON (1) S1 OFF (0) 1 2 3 4 5 6 7 S1 ON (1) OFF (0) Capacity Reserved EXV Initial Opening 1 2 3 4 5 6 7 8 S2 ON (1) OFF (0) Outdoor Address Reserved

COMMISSIONING Address Setting B-series outdoor unit PCB DIP switch S1，S2

COMMISSIONING B-series outdoor unit PCB S1 S2 S3 ON (1) OFF (0) 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 Outdoor unit capacity No. of indoor units Outdoor address Cooling / Heating EXV initial opening MDS _A/B Master / Slave

COMMISSIONING Address Setting Indoor unit PCB DIP switch S2

COMMISSIONING Indoor unit PCB ON (1) OFF (0) ON (1) OFF (0) 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 7 8 Auxiliary Heater 1 Auxiliary Heater 2 Reserved Address Capacity Model Water Pump

COMMISSIONING Setting SLM Controller LCD Display Receiver ON / OFF Temperature Up / Down Fan Mode Heater / Swing Timer Sleep

Press “CLK” again to confirm COMMISSIONING Handset Setting SLM Controller Real Timer Setting Press “CLK” Day Setting CLK Press “Δ” or “▽” to change the day setting (Monday ~ Sunday) * Press “CLK” again to confirm *Note: If no action within 5s, it will return to main page

COMMISSIONING Handset Setting SLM Controller Real Timer Setting After day setting is confirmed LCD real time blink CLK * Press “Δ” to increase 1 hour Press “▽” to increase 1 minute Press “CLK” again to confirm *Note: If no action within 5s, it will return to main page

COMMISSIONING Handset Setting SLM Controller DIP1 – Temperature Unit Setting ON - °F OFF - °C DIP2 – Auto Start Setting ON - Available OFF - N/A DIP switch

COMMISSIONING Test Run Check the power supply between outdoor unit and switch board. 1. 220V power supply (L / N) 2. 380V power supply – make sure the phase sequence are correct, L1(R) L2(S) L3(T) Outdoor unit powered ON 6 hours in advance to preheat the crankcase heater. If main power is turned OFF for a long time, the system cannot run immediately after power resume. (Need to wait for 2.5 hours)

COMMISSIONING Test Run Indoor unit checking:- Outdoor unit checking:- Continue… Indoor unit checking:- 1. Check the power supply wiring and signal wiring in each indoor unit. 2. If the signal wire and power wire are cross-connected, all PCB will burn. 3. The signal wires must be in different colour for different terminal in order to avoid misconnection of polarity. 4. Check the address setting of the indoor unit:- – Make sure the address settings are correct. – Each indoor unit should have different address. Outdoor unit checking:- 1. Check the no. of indoor unit settings are correct. 2. Make sure the capacity settings are correct. 3. Make sure the Master and Slave unit setting are correct (if applicable).

Thank you