background image

16

3

m /h

Air flow supplied to an adjacent room in m /h, fresh air fan at high speed.

3

OPTIONAL ELECTRIC HEATER TECHNICAL DATA

(*)Elements included in optional kit

Duct connection  Ø150mm 
flange and clip (*)

Insulated flexible 
duct Ø150

Air inlet 

grille

Duct connection Ø75 mm(*)

Duct 

Ø125mm

Air inlet grille 
and filter

Air intake

Fan (*)

Reduction

125-75mm(*)

Branch 150x125(*)

Duct 
Ø150mm

POWER

230 V  1Ph -50Hz
230 V / 400 V  3Ph -50Hz

2,5 Kw / 4 Kw

• Remove the 150 mm insulation material and cut out the 

prepunched side knockouts. Do not use the same fan to 
provide air conditioned to both ducts.

• Cut away the polystyrene around the inside edge of the 

opened panel, remove the polystyrene.

• Use a duct connection flange and a suitable duct.
• Air supply to an adjacent room requires that outlet 

corresponding with the duct is closed.

• An air inlet grille must be fitted (if possible near the floor) 

between the air conditioned room (where the unit is 
situated) and the adjacent room.

• Conduits can be of flexible polyester type or corrugate 

aluminium, externally covered with anti-condensate 
material. The duct length can be calculated by taking 
into account the pressure drop through the unit, using 
the following table.

• Side knockouts panel are provided. One to connect a fresh air inlet duct, and another to connect an air distribution 

duct to deliver air to an adjacent room.

MODELS

OPTIONS

AIR SUPPLY TO AN ADJACENT ROOM

INSTALLATION

INSTALLATION

• Remove the 68 mm insulation material and cut out the 

prepunched side knockouts.

• Secure the duct connection flange to the unit.  Conduits 

can be of flexible polyester type or corrugate aluminium, 
externally covered with anti-condensate material.

• Install a supplementary fresh air fan for the introduction 

of fresh air into the unit. The fan motor must be controlled 
by an ON-OFF switch.

• Fresh air flow must be less than 10% of the total air flow, 

to avoid operating problems. A speed controller should 
be installed in the supplementary fan motor, for adjusting 
the air flow.

Air flow

CWC 070-2P / CWC 070-4P

400

UNIT/MODELS

Available pressure

200

50

0

10

20

500

250

50

0

20

30

Pa.

CWC 090-2P / CWC 090-4P

070-2P /  090-2P

FRESH AIR MAKE UP

Summary of Contents for CWC 070-2P

Page 1: ...WATER CASSETTE INSTALLATION OPERATION MAINTENANCE MANUAL...

Page 2: ...ternational organisation with world wide distribution takes pride in supplying you with this product CONTENTS PRODUCT RANGE GENERAL INFORMATION SPECIFICATION COOLING CAPACITIES HEATING CAPACITIES WATE...

Page 3: ...WC 070 4P CWC 090 4P COOLING HEATING 8450 5800 7050 10600 6450 LENNOX Cassette unit Difusser Installation manual Hanging bracket insulation Screws and washers Setting up template Packed separately PRO...

Page 4: ...e which is removed by means of a condensate pump Made in decorative plastic with a smooth finish Internal insulation prevents condensation from forming Four louvres ensure air distribution A polypropy...

Page 5: ...water pressure drop Pipe connections Sound level Lp Diffuser dimensions Cassette dimensions Diffuser weight Cassette weight Chilled water pressure drop Hot water pressure drop Total heating capacity T...

Page 6: ...tric heater power consumption Running current with electric heater 4 PIPES SYSTEM Pipe connections Sound level Lp Diffuser dimensions Cassette dimensions Diffuser weight Cassette weight Chilled water...

Page 7: ...ing capacity 6600 W To estimate the water flow use the formula Qw Pt x 0 86 Qw Water flow l h T Pt Total cooling capacity W T Inlet water temperature outlet water temperature C For the example given Q...

Page 8: ...speed fan For a different speed the given values must be multiplied by the following correction factors HEATING CAPACITY EXAMPLE For the unit CWC 090 2P with entering water temperature entering air te...

Page 9: ...46 9 11 14 16 1160 24 18 1450 33 28 CWC 070 4P CWC 090 4P CWC 090 4P CWC 070 4P 400 900 500 1000 1200 700 600 800 24 27 COOL WATER HOT WATER 7 9 11 21 15 16 18 PRESSURE DROP Kpa 1100 1300 1400 1500 16...

Page 10: ...IFFUSER PANEL 298 37 152 197 Outlet cool water connection 3 4 G Inlet cool water connection 3 4 G 75 63 24 Drain tube 16 mm O D Condensate pump flexible hose 10 mm I D 15 mm O D Electrical cable entry...

Page 11: ...t is necessary to remove any water that accumulates in the drip tray 1 The unit should be positioned centrally within the room The ceiling must be horizontal to ensure that the unit is on level The un...

Page 12: ...The water connections should be positioned before that the unit is installed 6 When lifting the cassette into position care should be taken not to lift the unit by the drip tray water connection drai...

Page 13: ...al power and check that the fan has stopped 1 3 2 3 CONTROL PANEL Removing the corresponding plate cover screws gives access to the electrical board and terminal plate as indicated on the drawing For...

Page 14: ...ected with the power supply wires it depends on versions Check that the position in which the diffuser is mounted is the right one 1 Release the air intake grille 2 The diffuser panel can then be prov...

Page 15: ...a risk of damaging the unit through dust contamination ACCESS TO ELECTRICAL COMPONENTS Fig 2 3 1 Stop the unit 2 Open the air intake grille on the unit Open the grille by way of two hand triggers whi...

Page 16: ...trol as well the louvres may be set to move continuously sweep mode For more information see the remote control manual DIRECCIONAMIENTO DE AIRE DRIP TRAY VOLUTE MAINTENANCE 1 2 Louvre position for cor...

Page 17: ...xible polyester type or corrugate aluminium externally covered with anti condensate material The duct length can be calculated by taking into account the pressure drop through the unit using the follo...

Page 18: ...ay be faulty 3 Condensate overflowing Check drip tray for blockage and condensate drains away Check unit is level Check condensate pump is working Check service drain pipework Install the auxiliary dr...

Page 19: ...eserve the right to make modifications without notice We reserve the right to modify our products without notice without obligation to modify previously supplied goods These operating instructions con...

Page 20: ...l 49694209790 fax 496942097940 e mail info lennoxdeutschland com LENNOXBENELUXB V t l 31332471800 fax 31332459220 e mail info lennoxbenelux com LENNOXPOLSKASPzo o t l 48228322661 fax 48228322662 e mai...

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