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YORK CASSETTE (EN) 035T76015-000

CASSETTE

7

6 - CONDENSATE DRAINAGE

6.1 -INSTALLATION

The units are fitted with an internal condensate drainage pump. The hose connection point on the unit is located
260 mm above the level of the false ceiling. Drainage piping connected to the unit must be installed with a
downwards slope without any rises

Drain Piping Work

Drain pipe must be in downward gradient for smooth
drainage.

Avoid installing the drain pipe in up and down slope to
prevent reversed water flow.

During the drain pipe connection, be careful not to exert
extra force on the drain connector at indoor unit.

The outside diameter of the drain connection at the
flexible drain hose is 20 mm.

Be sure to execute heat insulation (polyethylene foam
with thickness more than 8.0 mm.) on the drain piping
to avoid the condensed water dripping inside the room.

Drain Test

Connect the main drain pipe to the flexible drain hose.

Feed water from flexible drain hose to check the piping
for leakage.

When the test is completed, connect the flexible drain
hose to the drain connector on the indoor unit.

6.2 -CAUTION (MULTIPLE CASSETTE UNIT INSTALLATIONS)

When a common drainage line is required, the connection point of each unit to the line must be higher than the line
itself. The diameter of a common drainage line must be sufficient to accommodate the condensate flow from the
units connected to it.

Verification of condensate water drainage :

Fill the drain pan and observe evacuation.

Indoor Unit

Pipe Clamp

GOOD

BAD

Main Drain 
Pipe

Flexible 
Drain Hose

Feed Water

Note

THIS INDOOR UNIT USES A DRAIN PUMP FOR CONDENSED WATER DRAINAGE. INSTALL THE
UNIT HORIZONTALLY TO PREVENT WATER LEAKAGE OR CONDENSATION AROUND THE AIR
OUTLET

02_MKL-MKM.p65

13/6/02, 11:08 am

7

Summary of Contents for MKL/MKM 25

Page 1: ...YORK CASSETTE EN 035T76012 000 035T76015 000 MINISPLIT CASSETTE MODELS MKL MKM G MOL MOM 25 55 TECHNICAL GUIDE 01_MKL MKM p65 13 6 02 2 01 pm 1...

Page 2: ...undertaking any work on the unit make sure that the power supply has been disconnected ELECTRICAL CONNECTIONS All electrical wiring and connections must comply with local standards Power supply cord a...

Page 3: ...250 47 650 6 23 8 00 13 98 13 95 5 367 6 892 12 038 12 007 20 130 26 986 42 350 45 635 5 89 7 901 12 4 13 36 5 072 6 800 10 672 11 499 220 240 1 50 1 184 1 358 1 637 1 740 0 15 0 207 0 207 0 259 0 4...

Page 4: ...800 800 800 Clearance required for outdoor units Overall unit dimensions are shown in the Technical Specifications table B A D C I H F E G C B A W D H F E A B W H D F C E MODELS A B C D E F G H I MKL...

Page 5: ...or wiring piping and drainage The indoor unit must be installed in such that is free from any obstacles in path of cool air discharge and warm air return and must allow spreading of air throughout the...

Page 6: ...e sure to discuss the ceiling drilling work with the installers concerned Unit Hanging Confirm the pitch of the hanging rod is 525 0 mm x 786 0 mm sharp Hold the unit and hang it on the hanging rod wi...

Page 7: ...mm on the drain piping to avoid the condensed water dripping inside the room Drain Test Connect the main drain pipe to the flexible drain hose Feed water from flexible drain hose to check the piping f...

Page 8: ...the service valve 2 Connect the line to a vacuum pump and pump down to 5 Pa 3 When pump down is finished wait 15 minutes to detect potential circuit leakage Open service valves on the outdoor unit Tab...

Page 9: ...ed through coil and joints while the brazing work is being done This will eliminate soot formation on the inside wall of copper tubing Cut the pipe stages by stages advancing the blade of pipe cutter...

Page 10: ...tightened plug the access holes with the rubber plugs provided The outer end of the rubber plugs is inclined and should be installed flush with the slope Turn the plugs to suit their location and pre...

Page 11: ...stall the air intake grille together with the air filter to the front panel The grille can be fit in any direction when selecting direction the ceiling design and grille operability should be consider...

Page 12: ...de a return grille 2 Air flow rate should be approximately 25 against the nominal air flow rate In this case the external static pressure of duct side is 1 1 5 mm Aq Therefore the external static pres...

Page 13: ...sealing material is the same length as the longer air discharge outlet If it is desired to seal the shorter air discharge outlet cut the scaling material to shorten it push the sealing material in abo...

Page 14: ...til the coil temperature reaches predetermined set points at which time the unit will resume normal operation LOW VOLTAGE The feature is used to protect against any damage to the unit caused by fluctu...

Page 15: ...t or stop button must be pressed again to reset the timer function To cancel either the Start or Stop Timer setting press the Cancel button To check the time that has been entered either for starting...

Page 16: ...at the units is held off due to Low Voltage If the voltage has passed through the reset voltage and the unit is waiting for the time delay the lights will go to normal operation 3 The lights will show...

Page 17: ...warm water 40 C with a mild detergent 2 Rinse and dry before replacing on unit 3 Never use petrol alcohol or any oter chemical product 1 Remove dust from the front panel with a soft duster or wipe a d...

Page 18: ...03_MKL MKM p65 13 6 02 11 08 am 18...

Page 19: ...03_MKL MKM p65 13 6 02 11 08 am 19...

Page 20: ...may then be re used if appropriate or returned to the manufacturer for disposal Under No circumstances should refrigerant be vented to atmosphere Where appropriate drain the refrigerant oil from each...

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