Senville SENA 18HF MOZ Owner'S Manual & Installation Manual Download Page 12

Manual Operations 

 And Maintenance

Manual Operations And Maintenance

Operation mode selection

Maintenance 

While two or more indoor units are 

simultaneously operating, make sure the modes 

do not conflict with each other. The heat mode 

claims precedence over all other modes. If the 

unit intially started to operate in HEAT mode, the 

other units can operate in HEAT mode only. For

example: If the unit intially started operates under 

COOL (or FAN) mode, the other units can operate 

under any mode except HEAT. If one of the unit 

selects HEAT mode, the other operating units will 

stop operation and diplay ”--” (for units with 

display window only) or the auto and operation 

indication light will flash rapidly, the defrost

indication light will turn off, and the timer 

indication light will remain on (for units without 

a display window). Alternatively, the defrost and 

alarm indication light (if applicable) wil light up, 

or the operation indication light will flash rapidly, 

and the timer indication light will turn off ( for 

the floor and standing type).

 

If you plan to leave the unit idle for a long time, 

perform the following tasks:
1. Clean the indoor unit and air filter.

2. Select FAN ONLY mode and let the indoor fan

run for a time to dry the inside of the unit.

3. Disconnect the power supply and remove the

battery from the remote control.

4. Check components of the outdoor unit

periodically. Contact a local dealer or a

customer service centre if the unit requires

servicing.

When the air conditioner is to be used 

again:

Use a dry cloth to wipe off the dust

accumulated on the rear air intake grille in

order to avoid the dust being dispersed from

the indoor unit.

Check that the wiring is not broken off or

disconnected.

Check that the air filter is installed.

Check if the air outlet or inlet is blocked after

the air conditioner has not been used for a

long time.

Suggestion: 

For units that feature an electric heater, 

when the outside ambient temperature is 

below 0°C (32°F), it is strongly recommended 

that you to keep the machine plugged in so 

as to guarantee smooth operation.

Optimal operation

To achieve optimal performance, please note the 

following:

Adjust the direction of the air flow so that it is

notblowing directly on people.

Adjust the temperature to achieve the highest

possible level of comfort. Do not adjust the unit

to excessive temperature levels.

Close doors and windows in COOL mode or

HEAT mode.

Use the TIMER ON button on the remote

controller to select a time you want to start

your air conditioner.

Do not place any object near the air inlet or air

outlet, as the efficiency of the air conditioner

may be reduced and the air conditioner may

stop running.

Clean the air filter periodically, otherwise

cooling or heating per formance may be

reduced.

Do not operate unit with horizontal louvre in

closed position.

NOTE: 

Before you clean the air conditioner, be 

sure to switch off the unit and disconnect the 

power supply plug.

Summary of Contents for SENA 18HF MOZ

Page 1: ...is manual carefully before installing or operating your new air conditioning unit Make sure to save this manual for future reference Please check the applicable models technical data F GAS if any and...

Page 2: ...wner s Manual Table of Contents Safety Precautions Unit Parts And Major Functions 1 Unit Parts 2 Operating temperature 3 Features Manual Operations And Maintenance Troubleshooting 04 07 07 09 10 12 13...

Page 3: ...efrigerant Piping Connection 1 Cut pipe 2 Remove burrs 3 Flare pipe ends 4 Connect pipes Wiring 1 Outdoor Uint Wiring 2 Wiring Figure Air Evacuation 1 Evacuation Instructions 2 Refrigerant Release Ins...

Page 4: ...ock fire or injury Do not insert fingers rods or other objects into the air inlet or outlet This may cause injury since the fan may be rotating at high speeds Do not use flammable sprays such as hair...

Page 5: ...ical shock If connecting power to fixed wiring an all pole disconnection device which has at least 3mm clearances in all poles and have a leakage current that may exceed 10mA the residual current devi...

Page 6: ...ance to its support please read the information for details in indoor unit installation and outdoor unit installation sections For units that have an auxiliary electric heater do not install the unit...

Page 7: ...5 Horizontal louver 6 LCD display window 7 Vertical louver 8 Manual control button behind 9 Remote controller holder Outdoor unit 10 Drain hose refrigerant connecting pipe 11 Connective cable 12 Stop...

Page 8: ...controller 4 Installation part 5 Display panel Outdoor unit 6 Drain hose refrigerant connecting pipe 7 Connective cable 8 Stop valve 9 Fan hood Indoor unit 1 Drain pump drain water from indoor unit 2...

Page 9: ...0 C 50 C 32 F 122 F 15 C 24 C 5 F 75 F 0 C 50 C 32 F 122 F 0 C 52 C 32 F 126 F For special tropical models 0 C 52 C 32 F 126 F For special tropical models 15 C 50 C 5 F 122 F For models with low temp...

Page 10: ...F button on the remote control If the system has an auto restart function the unit will restart using the same settings White mist emerging from the indoor unit A white mist may be generated due to a...

Page 11: ...erature If a comfortable temperature cannot be achieved with the air conditioner alone it is recommended that you use a supplementary heating device Lightning or a car wireless telephone operating nea...

Page 12: ...eriodically Contact a local dealer or a customer service centre if the unit requires servicing When the air conditioner is to be used again Use a dry cloth to wipe off the dust accumulated on the rear...

Page 13: ...The set temperature has been reached at which point the unit turns off the compressor The unit will resume operating when the temperature fluctuates again The indoor unit emits white mist In humid re...

Page 14: ...mize product operation The indoor unit makes noises A squeaking sound is heard when the system is OFF or in COOL mode The noise is also heard when the drain pump optional is in operation A squeaking s...

Page 15: ...oors and windows are closed while operating the unit Excessive heat is generated by sunlight Close windows and curtains during periods of high heat or bright sunshine Low refrigerant due to leak or lo...

Page 16: ...speed has been out of control IPM malfunction or IGBT over strong current protection Over voltage or over low voltage protection High temperature protection of IPM module Outdoor ambient temperature t...

Page 17: ...sed separately Manual 2 4 Name of Accessories Qty pc Shape Name of Accessories Qty pc Shape 1 1 2 Drain joint Seal ring Copper nut Name Shape Quantity pc per box Copper line set Liquid side Gas side 1...

Page 18: ...lation Summary INSTALLATION ORDER L N 1 2 3 MC MC 4 5 Install the outdoor unit Evacuate the refrigeration system Connect the wires Connect the refrigerant pipes Perform a test run Installation Summary...

Page 19: ...n of 3 metres is required to minimise vibration excessive noise Two of the A B and C air circulation pathways must be free from obstructions at all times NOTE The installation must be performed in acc...

Page 20: ...Max Height difference SENA 18HF MOZ SENA 30HF MOZ Max length for all rooms 131 40m 197 60m Max length for one indoor unit 82 25m 98 30m Max height different between indoor and outdoor unit 49 15m 49...

Page 21: ...rection of the wind If needed build a barrier in front of the unit to protect it from extremely heavy winds See Figures below Strong wind Strong wind Strong wind If the unit is frequently exposed to h...

Page 22: ...nit in place you must install the drain joint at the bottom of the unit Note that there are two different types of drain joints depending on the type of outdoor unit If the drain joint comes with a ru...

Page 23: ...hole make sure to avoid wires plumbing and other sensitive components 3 Place the protective wall cuff in the hole This protects the edges of the hole and helps seal it when you finish the installatio...

Page 24: ...nance Connection Instructions Refrigerant Piping 1 Measure the distance between the indoor and outdoor units 2 Using a pipe cutter cut the pipe a little longer than the measured distance 3 Make sure t...

Page 25: ...th the dimensions shown in the table below Fig 5 3 Fig 5 4 PIPING EXTENSION BEYOND FLARE FORM Outer Diameter of Pipe inch A inch Min Max 1 4 6 35mm 0 0275 0 7mm 0 05 1 3mm 3 8 9 52mm 0 04 1 0mm 0 063...

Page 26: ...caps from ends of valves 3 Align flared pipe end with each valve and tighten the flare nut as tightly as possible by hand 4 Using a spanner grip the body of the valve Do not grip the nut that seals t...

Page 27: ...MOZ 1 4 3 8 SENA 36HF MOZ SENA 48HF MOZ Port B Liquid Gas Port C Liquid Gas Port D Liquid Gas Port E Liquid Gas 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8 1 4 3 8...

Page 28: ...or switch 7 Only connect the unit to an individual branch circuit outlet Do not connect another appliance to that outlet 8 9 10 11 12 Make sure to properly ground the air conditioner Every wire must b...

Page 29: ...bels on the terminal block Firmly screw the u lug of each wire to its corresponding terminal 4 Clamp down the cable with the cable clamp 5 Insulate unused wires with electrical tape Keep them away fro...

Page 30: ...18HF MOZ SENA 30HF MOZ Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Green Green Green...

Page 31: ...lack White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black White Red Black Whi...

Page 32: ...age circuit breaker in wet or moist areas The following can be caused by a drop in voltage vibration of a magnetic switch damaging the contact point broken fuses and disturbance of normal functioning...

Page 33: ...ork when outside temperature is not above 5 2 Check that the stop valves of the liquid pipe and gas pipe are open 3 Turn on the breaker and wait at least 2 minutes 4 Press the check switch on the outd...

Page 34: ...r High Pressure Valve Manifold High Pressure Valve 0 0 3 50 100 150 200 250 300 350 0 100 200 300 400 500 500 600 Fig 6 1 Air Evacuation 4 5 Evacuation is now complete Close the left blue manifold low...

Page 35: ...Note on Adding Refrigerant R410a ADDITIONAL REFRIGERANT PER PIPE LENGTH Depending on the length of the installed piping you may need to add additional refrigerant to your system The unit comes pre ch...

Page 36: ...age check Turn off the unit immediately if leakage happens Try and evaluate different solutions until the unit operates properly Gas leak check 1 Soap water method Apply a soap water solution or a liq...

Page 37: ...2 Turn on the main power switch and allow the unit to warm up 3 Set the air conditioner to COOL mode 4 For the Indoor Unit a Ensure the remote control and its buttons work properly b Ensure the louver...

Page 38: ...s are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details Any updates to the manual will be uploaded to the service website please...

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