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17

Cassette Cover Panel Installation

1.  Carefully remove the cassette cover panel from its 

protective  packaging  and  place  the  panel  diffuser-

side-out on a clean, level surface.

CORNER ACCESS

COVER

Remove screws and loosen

straps to remove corner

covers from panel.

LATCH RELEASE

BUTTONS

45º

Press latch release

buttons at the same

time to release latch.

Tilt return air grille outward,

then, lift to remove grille

from panel.

Figure 20. Remove Return Air Grille

  CAUTION

Do  not  place  the  cover  panel  with  the  diffusers  face 

down  on  the  floor  or  other  surface.  Louvers  will  be 

damaged if pressure is applied to them.

2.  Press the two grille latch release buttons at the same 

time to release the grille. See Figure 20. Tilt the return 

air grille outward at a 45º angle and lift the grille away 

from the panel. Carefully place the return air grille off 

to the side. 

3.  Remove access covers from each corner of the panel. 

See Figure 21.

Figure 21. Remove Corner Covers

4.  Position the ceiling panel so that the arrow on the panel 

is aligned with the arrow sticker on the cassette base 

(both arrow stickers should be on the same side of the 

cassette base). 

NOTE -

 If the panel and the base are 

not properly aligned, the airflow will be blocked and 

the harness plugs from the panel to the cassette base 

will not be long enough to plug together.

5.  Locate the cover panel hangers on the two corners 

with the louver swing motors. Place these two 

hangers on the corresponding hooks on the corners 

of the cassette base. See detail A in Figure 22. Then, 

place the other hangers from the other two corners 

over their corresponding hooks on the cassette base 

as shown in detail B in Figure 22.

6.  Connect the six-pin harness plugs from each of the 

two swing motors to the matching six-pin plugs from 

the control box in the cassette base.

7.  Connect the black harness from the display on the 

cover panel to the corresponding black plug from the 

control box in the cassette base.

 

NOTE -

 Cover panel must be ordered as a separate accessory. 

Содержание VRF V33B Series

Страница 1: ...ce can cause property damage personal injury or loss of life Installation and service must be performed by a li censed professional HVAC installer service agency or the gas supplier Failure to follow...

Страница 2: ...s are similar in appearance but must not be connected to a Lennox VRF refrigerant circuit Please refer to model numbers to confirm compatibility Model numbers for Lennox VRF units start with a V and m...

Страница 3: ...ID PIPE 1 3 4 44 SIDE VIEW 34 5 8 879 Ceiling Opening AIR OUTLET AIR INLET AIR OUTLET LEVELING ADJUSTMENT NUT 4 INSTALLATION HANGERS 4 DIFFUSER PANEL CEILING DRAIN PIPE BOTTOM PANEL VIEW SIDE VIEW LIQ...

Страница 4: ...p Ceiling 10 1 4 inches 260 mm 007 009 012 015 models 13 inches 330 mm 015 018 024 030 036 048 models Minimum Clearance to Floor 90 inches 2286 mm Maximum Clearance to Floor 160 inches 4064 mm Minimum...

Страница 5: ...ord line radio telephone security system or intercom Electrical interference and radio frequencies from any of these sources may affect operation WARNING Do not install the unit in an area where flamm...

Страница 6: ...It may be necessary to add extra support If the structural support is constructed of concrete install anchors to accept four threaded rods to suspend the cassette base If the structural support includ...

Страница 7: ...and discard the seal from each of the piping connections 4 Slide the flare nuts onto the ends of the field provided refrigerant piping before using a suitable flaring tool to flare the end of the cop...

Страница 8: ...se an appropriately sized wrench to turn an additional Inches U S 1 4 15 ft lb 1 4 turn 3 8 26 ft lb 1 2 turn 1 2 41 ft lb 7 8 turn 5 8 48 ft lb 1 full turn Table 2 Flare Nut Torque Recommendations IM...

Страница 9: ...loped no less than 1 4 inch per foot and that each individual drain is connected to the main drain exactly as shown 5 Drain should be as short as possible and should not have any droops or kinks that...

Страница 10: ...a ballast The ballast may affect remote control operation 2 Locate the terminal strip in the control box Connect the power wiring sized per NEC CEC and local codes and communications cable per Figure...

Страница 11: ...tdoor Unit Main Unit L1 L2 L3 Outdoor Unit Sub1 unit L1 L2 L3 Outdoor Unit Sub2 Unit L1 L2 L3 L1 L2 L3 L1 L2 L3 L1 L2 L3 L1 L2 L3 L1 L2 L3 L1 L2 L3 Service Disconnect Service Disconnect Service Discon...

Страница 12: ...olarity sensitive Typical Wiring Diagram NEC CEC and Local Codes apply Outdoor unit Outdoor unit sub1 unit Outdoor unit sub2 unit PQ main unit PQ MS Box PQ PQ MS Box PQ PQ H1 H2 H1 H2 H1 H2 Outdoor Un...

Страница 13: ...htening Torque Tightening torque lb ft Terminal base of remote controller Signal transmission wire X2M 0 58 0 72 Terminal base of power supply X1M 0 87 1 06 Grounding terminal M4 1 06 1 43 PQ PQ Outdo...

Страница 14: ...erials must be listed ANSI UL and ASTM E 84 approved NOTE A maximum of two sides can be blanked off 1 Remove the decorative cover panel if installed 2 Identify and measure the supply air opening that...

Страница 15: ...15 Figure 16 Three way Outlet Possible Flow Patterns Figure 17 Two way Outlet Possible Flow Patterns Typical cassette body shown actual unit may vary...

Страница 16: ...18 4 Remove any insulation 5 Connect the secondary supply duct to the cassette body using the eight screw holes shown in figure 18 6 A field supplied duct transition may be required Be sure there is a...

Страница 17: ...panel See Figure 21 Figure 21 Remove Corner Covers 4 Position the ceiling panel so that the arrow on the panel is aligned with the arrow sticker on the cassette base both arrow stickers should be on...

Страница 18: ...ake sure that the panel is properly aligned with the cassette base 9 Continue to tighten the cover panel securing screws until the insulation between the cover panel and the cassette base has been com...

Страница 19: ...nate so that all codes are shown Make note of the code E1 EE etc then reset the display by pressing the ON OFF button on the unit controller Press the ON OFF button a second time to reapply power to u...

Страница 20: ...E4 T2B Outlet of evaporator sensor malfunction E5 T2A Inlet of evaporator sensor malfunction E6 DC fan motor error E7 EEPROM failure Eb EXV malfunction Ed Outdoor unit Fault EE High Water Alarm A0 Em...

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