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14

2. Swing out indoor coil access panel and insert the hood

sides under the panel (hood top). Use the screws provided

to attach the hood sides to the hood top. Use screws pro-

vided to attach the hood sides to the unit. See Fig. 17.

3. Remove the shipping tape holding the economizer baro-

metric relief damper in place (economizer only).

4. Insert the hood divider between the hood sides. See

Fig. 17 and 18. Secure hood divider with 2 screws on each

hood side. The hood divider is also used as the bottom fil-

ter rack for the aluminum filter.

5. Open the filter clips which are located underneath the

hood top. Insert the aluminum filter into the bottom filter

rack (hood divider). Push the filter into position past the

open filter clips. Close the filter clips to lock the filter into

place. See Fig. 18.

6. Caulk the ends of the joint between the unit top panel and

the hood top.

7. Replace the filter access panel.

Fig. 16 — Indoor Coil Access Panel Relocation

Fig. 17 — Economizer Hood Construction

Fig. 18 — Economizer Filter Installation

Step 9 — Units with Hinged Panels Only

Relocate latch shipped inside the compressor compartment be-

hind the hinged compressor door to location shown in Fig. 19

after unit installation.
If the unit does not have hinged panels, skip this step and con-

tinue at Step 10 below.

Fig. 19 — Compressor Door Latch Location

Step 10 — Install External Condensate Trap and

Line

The unit has one 

3

/

4

-in. condensate drain connection on the end

of the condensate pan and an alternate connection on the bot-

tom. See Fig. 20. Unit airflow configuration does not deter-

mine which drain connection to use. Either drain connection

can be used with vertical or horizontal applications.
When using the standard side drain connection, ensure that the

red plug in the alternate bottom connection is tight. Do this be-

fore setting the unit in place. The red drain pan plug can be

tightened with a 

1

/

2

-in. square socket drive extension.

To use the alternate bottom drain connection, remove the red

drain plug from the bottom connection (use a 

1

/

2

-in. square sock-

et drive extension) and install it in the side drain connection.
The piping for the condensate drain and external trap can be

completed after the unit is in place. See Fig. 21.
All units must have an external trap for condensate drainage.

Install a trap at least 4-in. (102 mm) deep and protect against

freeze-up. If drain line is installed downstream from the exter-

nal trap, pitch the line away from the unit at 1-in. per 10 ft

(25 mm per 3 m) of run. Do not use a pipe size smaller than the

unit connection (

3

/

4

-in.).

TOP
PANEL

INDOOR
COIL
ACCESS
PANEL

INDOOR
COIL
ACCESS
PANEL

CAULK
HERE

TOP
PANEL

B

TOP
PANEL

INDOOR COIL
ACCESS PANEL

19 1/16”

SCREW

HOOD DIVIDER

LEFT
HOOD
SIDE

33 3/8”

(848mm)

(483mm)

DIVIDER

BAROMETRIC
RELIEF

CLEANABLE
ALUMINUM
FILTER

FILTER

HOOD

FILTER
CLIP

OUTSIDE
AIR

COMPRESSOR

DOOR

OUTDOOR COIL

LATCH

Содержание Preferred 549J 04

Страница 1: ...NG RETURN AIR SMOKE SENSOR INSTALLATION ADDITIONAL APPLICATION DATA RTU Open Control System 43 Controller Options 43 LOW AMBIENT Step 12 Adjust Factory Installed Options 43 SMOKE DETECTORS ECONOMI ER...

Страница 2: ...his warning could cause personal injury death and or equipment damage R 410A refrigerant systems operate at higher pressures than standard R 22 systems Do not use R 22 service equipment or components...

Страница 3: ...Options Indoor Fan Options 0 Electric Drive X13 Motor 04 06 1 Standard Static Option Belt Drive 2 Medium Static Option Belt Drive 3 High Static Option Belt Drive Outdoor Air Options A None B Temp Eco...

Страница 4: ...4 Fig 2 549J 04 06 Units Built On and After 4 15 2019...

Страница 5: ...5 Fig 3 549J 04 06 Units Built Prior to 4 15 2019...

Страница 6: ...6 Fig 4 549J 04 06 Corner Weights and Clearances...

Страница 7: ...7 Fig 5 549J 04 06 Base Rail Details...

Страница 8: ...8 Fig 6 549J 04 06 Thru the Base Charts...

Страница 9: ...sate drain connection plug 3 Rig and place unit 4 Convert unit to side duct connection arrangement 5 Install field fabricated ductwork at unit duct openings 6 Install outdoor air hood 7 Install conden...

Страница 10: ...10 Fig 7 Roof Curb Details 549J 04 06 ROOFCURB ACCESSORY CRRFCURB001A02 CRRFCURB002A02 1 2 356 2 0 610 UNIT SIZE...

Страница 11: ...Fig 9 Re fer to rigging instructions on unit Before setting the unit onto the curb recheck gasketing on curb Position unit on roof curb so that the following clearances are maintained 1 4 in 6 4 mm cl...

Страница 12: ...ld be secured to the flanges In sulate and weatherproof all external ductwork joints and roof or building openings with counter flashing and mastic in accor dance with applicable codes Do not cover or...

Страница 13: ...To gain access to the hood remove the filter access panel See Fig 13 2 Locate the 2 screws holding the metal tray to the basepan and remove Locate and cut the 2 plastic tie wraps secur ing the assembl...

Страница 14: ...Step 10 Install External Condensate Trap and Line The unit has one 3 4 in condensate drain connection on the end of the condensate pan and an alternate connection on the bot tom See Fig 20 Unit airflo...

Страница 15: ...nection pressure lugs only Connect field power supply conductors to LINE side terminals when the switch enclosure cover is removed to attach the handle Fig 22 Disconnect Switch and Unit UNITS WITHOUT...

Страница 16: ...venience outlets is now required by UL standards This cover cannot be factory mounted due its depth it must be in stalled at unit installation For shipment the convenience outlet is covered with a bla...

Страница 17: ...enience outlets Fuse On Power Type The factory fuse is a Bussman Fusetron 1 T 15 non renew able screw in Edison base type plug fuse Duty Cycle The unit powered convenience outlet has a duty cycle limi...

Страница 18: ...cated on the bottom left side of the unit control box Use this hole for the control conduit UNITS WITHOUT THRU BASE CONNECTIONS ELEC TRICAL CONNECTIONS 1 Install power wiring conduit through side pane...

Страница 19: ...n Kit Pass the thermostat control wires through the hole provided in the corner post then feed the wires through the raceway built into the corner post to the control box Pull the wires over to the te...

Страница 20: ...t interval timing is reduced by a factor of 0 1 seconds minute based on the posi tions of DIP switches SW1 and SW2 i e 90 minutes will be reduced to 9 seconds 2 Jumper for 5 20 seconds Forced Defrost...

Страница 21: ...DIP Switch Settings Defrost Board ELECTRIC HEATERS 549J units may be equipped with field installed accessory elec tric heaters The heaters are modular in design with heater frames holding open coil re...

Страница 22: ...necessary Single Point Boxes without Fuses Refer to accessory heater and single point box installation in structions for details on tap connections Fig 39 Typical Single Point Installation Low Voltag...

Страница 23: ...23 Fig 41 Electro Mechanical Control Wiring 208 230v 460v...

Страница 24: ...24 Fig 42 Electro Mechanical Control Wiring 575v...

Страница 25: ...25 Fig 43 Electro Mechanical Power Wiring 208 230 1 60...

Страница 26: ...26 Fig 44 Electro Mechanical Power Wiring 208 230 3 60...

Страница 27: ...27 Fig 45 Electro Mechanical Power Wiring 460 3 60...

Страница 28: ...28 Fig 46 Electro Mechanical Power Wiring 575 3 60...

Страница 29: ...29 Fig 47 RTU Open System Control Wiring...

Страница 30: ...are available with bus sensors User Interface Provides status for normal operation setup parameters check out tests and alarm and error conditions with a 2 line 16 char acter LCD display and four butt...

Страница 31: ...odule Left Hand Terminal Blocks LABEL TYPE DESCRIPTION Top Left Terminal Block MAT MAT 20k NTC and COM Mixed Air Temperature Sensor Polarity Insensitive Connection OAT OAT 20k NTC and COM Outdoor Air...

Страница 32: ...menu items and to change parameter and configuration settings To use the keypad when working with menus Press the Up arrow button to move to the previous menu Press the Down arrow button to move to t...

Страница 33: ...ers in the menus use the letters MA or MAT indicating a mixed air temperature sensor location before the cooling coil This unit application has the control sensor locat ed after the cooling coil in th...

Страница 34: ...r from MAT sensor Displays _ _ _ F if not connected short or out of range DA TEMP _ _ _ F or _ _ _ C 40 F to 150 F 40 C to 66 C DISCHARGE AIR TEMPERATURE after Heating section Displays when Discharge...

Страница 35: ...the set point the Y1 O and Y2 O will not be energized on the controller DRYBLB SET 63F 17C 48 F to 80 F 9 C to 27 C increment by 1 F OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT Dry bulb set point wil...

Страница 36: ...he capacity of the RTU The value is found on the nameplate label for the specific unit AUX1 OUT NONE NONE ERV EXH2 SYS Select OUTPUT for AUX1 O relay NONE not configured output is not used ERV Energy...

Страница 37: ...damper to the full open position Exhaust fan contacts enable during the DAMPER OPEN test Make sure to pause in the mode to allow exhaust contacts to energize due to the delay in the system DAMPER CLOS...

Страница 38: ...N A N A ACTUATOR ERROR Actuator has failed or become disconnected check for stall over voltage under voltage and actuator count Replace actuator if damper is movable and supply voltage is between 21 6...

Страница 39: ...ENTILATION DCV OUTSIDE AIR GOOD TO ECONOMIZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 set No Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 24 v On 0 v Off VENTMIN Closed O...

Страница 40: ...ZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 set No Off Off High 0 v Off 0 v Off VENTMIN Closed On Off High 24 v On 0 v Off VENTMIN Closed On On High 24 v On 24 v On VENTMIN Closed Y...

Страница 41: ...irst line and economizer W7220 on the second line After a brief pause the revision of the software appears on the first line and the second line will be blank Power Loss Outage or Brownout All set poi...

Страница 42: ...r vertical return configurations only All compo nents necessary for operation are factory provided and mount ed The unit is factory configured for immediate smoke detec tor shutdown operation addition...

Страница 43: ...r IV wiring External occu pancy control is managed through a connection on the Controls Connections Board If external occupancy control is desired connect a time clock or remotely controlled switch cl...

Страница 44: ...includes a compressor ac cumulator reversing valve dual function outdoor coil with va por header check valve cooling liquid line with a filter drier and a check valve dual function indoor coil with a...

Страница 45: ...s B Acutrol DFT 1 Cooling Liquid Line A D Outdoor Coil Indoor Coil C Heating Mode Liquid Line Strainer Filter Drier LPS LOC Accurater all 3 4 and 5 ton units Accurater 3 and 4 ton units only Acutrol C...

Страница 46: ...ht to change at any time specifications and designs without notice and without obligations Replaces II549J 4 6 01 2019 Bryant Heating Cooling Systems Cat No 04 53549009 01 Edition Date 12 19 Printed i...

Страница 47: ...N _____ Check that indoor air filters are clean and in place Y N _____ Check that outdoor air inlet screens are in place Y N _____ Verify that unit is level Y N _____ Check fan wheels and propeller fo...

Страница 48: ...mperature _______________ F D Liquid line temperature at outlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Check for correct ramp up of outdoor fan motor as...

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