Carrier 48ZG, ZN030-105, Z6, Z8075-105 Install Economizer Hoods 48ZT,ZW Units

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Install Economizer Hoods (48ZT,ZW Units) —

The economizer uses a total of 4 outdoor intake hoods, 2 on each side of the unit. See Fig. 37. Two small hoods (one per side) are factory-installed and are pivoted inside the unit chas- sis for shipment. Two large hoods are shipped in packages located inside the unit. The large hoods (1 on each side) require field assembly and mounting.

INSTALL SMALL HOODS — To install the small econo- mizer hoods, perform the following procedure:

1.Remove the 10 screws holding each of the small econo- mizer hood shipping covers in place.

2.Pivot hoods outward. (There are a total of 2 hoods.)

3.Apply seal strip to vertical flange of hood sides.

4.Install 15 screws (4 each side, 7 across top) around the outside of each hood. Screws are in the fastener package taped to the basepan inside the fan section.

5.Apply a bead of RTV or similar sealant to corner of econ- omizer hood at pivot point to prevent water leaks. (See Fig. 30.)

INSTALL LARGE HOODS — Large hoods are shipped dis- assembled in the economizer section of the unit behind the large economizer hood shipping cover. See Fig. 38 for assem- bly details for large economizer hoods. To install the large economizer hoods, perform the following procedure:

1.Remove the 17 screws holding each of the large econo- mizer hood shipping covers in place.

2.Remove the packages containing the disassembled large economizer hoods (total of 2 packages). Each package

contains the following: left hood side, right hood side, hood top, hood front, top filter flange, side filter flanges (4), bottom support, front support, filters (6), filter clips (9), seal strip, fasteners.

3.Place seal strip on backside of bottom support along en- tire length of support, covering 6 clearance holes.

4.Attach bottom support piece to unit. Be sure seal strip is between bottom support and panel on unit.

5.Place seal strip on 3/4-in. flange on both the left and right hood side.

6.Attach the side filter flanges to the left and right hood sides, 2 on each hood side.

7.Attach left and right hood sides to unit. Be sure seal strip is between hood side and unit.

8.Place seal strip on 3/4-in. flange on hood top.

9.Attach top filter flange to hood top.

10.Attach top hood to unit and to hood sides. Be sure seal strip is between hood top and unit.

11.Attach front support between left and right hood sides.

12.Place seal strip on all filter flanges.

13.Attach filter clips to front and bottom supports.

14.Install filters and filter clips. Filters are held in place with filter clips.

15.Attach hood front to hood top and sides.

16.Apply RTV or similar sealant to 6 places shown in Fig. 38.

EXHAUST

AIR

LEGEND

PE VFD

ACCESS DOOR

AUXILIARY

CONTROL BOX

LARGE ECONOMIZER

HOOD LOCATION

POWER EXHAUST

ACCESS DOOR

SMALL ECONOMIZER

HOOD LOCATION

PE VFD — Power Exhaust Variable Frequency Drive

Fig. 37 — Economizer Hood Location — 48ZT,ZW Units

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Contents Installation Instructions Installation Base Unit Physical Data 48ZG,ZN030-050Alternate High-Capacity Evaporator Coil Base Unit Physical Data 48ZG,ZN055-070Base Unit Physical Data 48ZG,ZN075-105Outside AIR Screens Physical Data 48Z6,Z8075-105 RETURN/EXHAUST FAN Physical Data 48ZT,ZW075-105 Power Exhaust Operating Weights of Options and Accessories lbReturn/Exhaust Fan Drive Data 48Z6,Z8 Units Power Exhaust Fan Drive DataHigh-Capacity Power Exhaust Fan Drive Data 48ZT,ZW Units Supply Fan Drive DataRoof Curb Sizes 055-105 Roof Curb Sizes 075-105 with High-Capacity Power Exhaust Condenser Section Roof Curb Size 055 and 060 Only Condenser Section Roof Curb Size 070-105 Only Condenser END Support Gasket Location on Roof Curb 48ZT,ZW075-105 Units Rigging Label Size 055-105 Units Standard Chassis Rigging Label Size 055,060 Units Extended Chassis Weight Distribution and Center of Gravity Page 24 → Page Page A48-8451 Page Page A48-8452 A48-8453 A48-8454 Install Outdoor Hoods 48ZG,ZN,Z6,Z8 Units Outdoor Air Hood Installation Sizes Install Economizer Hoods 48ZT,ZW Units Field Wire Routing Disconnect Location Size 030-050 Units Disconnect Location 48ZG,ZN055-105 and 48Z6,Z8075-105 Units Field Power Wiring Connections MCA Mocp FLA Electrical Data, 48ZG,ZN030 UnitsElectrical Data, 48ZG,ZN035 Units Electrical Data, 48ZG,ZN040 Units Electrical Data, 48ZG,ZN050 Units MCA Mocp FLA Electrical Data, 48ZG,ZN055 UnitsElectrical Data, 48ZG,ZN060 Units 460 Electrical Data, 48ZG,ZN070 UnitsElectrical Data 48ZG,ZN075-105 Units Electrical Data 48Z6,Z8075-105 Units Electrical Data 48ZT,ZW075-105 Units Indoor Evaporator Fan Motor Auxiliary Control Box Location Sizes Sizes Sizes 055-105 without Return Fan Auxiliary Control Box DetailsReturn/Exhaust-Fan Shipping Brackets 48Z6 Shipping Brackets Sizes Compressor Mounting 48Z Series Staged Gas Implementation Gas Piping DetailsFlue/Inlet Hood Locations, 030-060 Units Inlet Hood View Port Cover Installation Units Only Point SGC Thermistor DesignationsCCN Connection Approved Shielded Cables Smoke Control Modes Field Control Thermostat WiringSpace Temperature Averaging Wiring Heat Interlock Relay Wiring Fan Status Switch Wiring Return Air Smoke Detector Wiring CCN Connections Page Copyright 2009 Carrier Corporation
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Z6, 48ZG, 48ZT, ZW, Z8075-105 specifications

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