background image

507788-01

Issue 2007

Page 3 of 20

Shipping and Packing List

Package 1 of 1 contains: 

1 –  Assembled air handler unit factory-equipped for upflow 

or horizontal air discharge application (includes upflow 

and horizontal drain pans and pre-installed air filter).

Check the air handler for shipping damage; if found, 

immediately contact the last carrier. Check the unit rating 

plate to confirm that delivered unit matches order.

General

The  BCE5E 

series  air  handler  with  Omniguard

TM

 coil 

is designed for indoor installation only. As shipped, the 

unit is ready for installation in either upflow or horizontal 

right-hand air discharge applications. Horizontal drain 

pan may be repositioned in the field to allow installation 

in the horizontal left-hand air discharge position. Various 

accessories are available and listed in the BCE5E Product 

Specification for ordering.

This instruction is intended as a general guide and does 

not supersede local or national codes in any way. Consult 

authorities having jurisdiction before installation. 

NOTE: 

Special  procedures  are  required  for  cleaning 

the  Omniguard

TM

  coil  in  this  unit.  See  Page  17  in  this 

instruction for information. 

Requirements

Excessive  Weight  Hazard  -  Use  two  or  more  people 

when  moving  and  installing  the  unit.  Failure  to  do  so 

can result in back or other type of injury.

 WARNING

BCE5E 

units  include  a  factory-installed  check/

expansion valve which will provide optimal refrigerant 

control and system performance with outdoor units of 

varying capacities. These units must be installed as 

a part of a matched system as outlined in the BCE5E 

Product Specification.

 IMPORTANT

These instructions are intended as a general guide. 

Compliance  with  all  local,  state,  or  national  codes 

pertaining to this type of equipment should be determined 

prior to installation. Read this instruction manual, as well 

as the instructions supplied in separate equipment, before 

starting the installation. 

In addition to conforming to manufacturer’s installation 

instructions and local municipal building codes, installation 

of air handler units (with or without optional electric heat), 

MUST  conform  with  National  Fire  Protection Association 

(NFPA) standards: “Standard for Installation of Air 

Conditioning and Ventilation Systems” (NFPA No. 90A) 

and “Standard for Installation of Residence Type Warm Air 

Heating and Air Conditioning Systems” (NFPA No. 90B). 

All models are designed for indoor installation only. The 

installation of the air handler, field wiring, duct system, etc. 

must conform to the requirements of the National Electrical 

Code,  ANSI/NFPA  No.  70  (latest  edition)  in  the  United 

States, and any state laws, and local ordinances (including 

plumbing or waste water codes). 

Local authorities having jurisdiction should be consulted 

before installation is made. Such applicable regulations 

or requirements take precedence over the general 

instructions in this manual. 

Install  the  conditioned  air  plenum,  ducts  and  air  filters 

(provided)  in  accordance  with  NFPA  90B  Standard  for 

the Installation of Warm Air Heating and Air-Conditioning 

Systems (latest edition). 

The air handler is shipped from the factory completely 

assembled.  The  unit  is  provided  with  flanges  for  the 

connection of the duct system. 

Do not remove the cabinet knockouts until it has been 

determined which knockouts will need to be removed for 

the installation. 

Select the air discharge position which best suits the site 

conditions. Consider required clearances, space, routing 

requirements for refrigerant line, condensate disposal, 

filters,  duct  system,  wiring,  and  accessibility  for  service. 

Refer  to  the  rating  plate  on  the  air  handler  for  specific 

information.

Danger  of  explosion.  Keep  flammable 

materials and vapors, such as gasoline, 

away from air handler. Place air handler so 

that heating elements are at least 18 inches 

(46  cm)  above  the  floor  for  a  garage 

installation.  Failure  to  follow  these 

instructions can result in death, explosion, 

or fire.

 WARNING

Summary of Contents for BCE5E Series

Page 1: ...t Lines 9 Sealing the Unit 11 Electrical Connections 12 Blower Performance Data 15 Air Flow Cooling Blower Speed 16 Checkout Procedures 16 Operation 17 Professional Maintenance 17 Homeowner Maintenance 17 Cabinet Insulation 18 Improper installation adjustment alteration service or maintenance can cause property damage personal injury or loss of life Installation and service must be performed by a ...

Page 2: ...NS 2 Horizontal 1 3 4 44 3 4 19 2 3 4 70 3 1 2 89 PIPING PLATE 4 3 4 121 4 3 8 111 2 3 8 60 CONDENSATE DRAINS 2 Upflow and Downflow SUCTION LINE CONDENSATE DRAIN PIPING PLATE 3 2 1 4 x 3 3 4 NOTE Unit is shipped configured for horizontal right hand air discharge Unit may be converted to horizontal left hand air discharge by repositioning horizontal drain pan Dimensions remain the same in all confi...

Page 3: ...pplied in separate equipment before starting the installation In addition to conforming to manufacturer s installation instructions and local municipal building codes installation of air handler units with or without optional electric heat MUST conform with National Fire Protection Association NFPA standards Standard for Installation of Air Conditioning and Ventilation Systems NFPA No 90A and Stan...

Page 4: ... replaced upon construction completion Installation Clearances Non Ducted Return Closet Installation The air handler can be installed in a closet with a false bottom to form a return air plenum It may also be installed with a return air plenum under the air handler Louvers or return air grilles are field supplied Local codes may limit application of systems without a ducted return to single story ...

Page 5: ...t installed in right or left hand applications The coil may tip into the drain pan once it is clear of the cabinet Support the coil when removing it IMPORTANT NOTE When the unit is installed in horizontal applications a secondary drain pan is recommended Refer to local codes NOTE This unit may be installed in left hand or right hand air discharge horizontal applications Adequate support must be pr...

Page 6: ...as the horizontal drain pan as illustrated in Detail A in Figure 5 NOTE Be very careful when reinstalling the screws into the coil end plate engaging holes Misaligned screws may damage the coil 9 From the upflow position flip cabinet 90º to the left and set into place Replace blower assembly Secure coil in place by bending down the tab on the cabinet support rail as illustrated NOTE Seal around th...

Page 7: ...DARY DRAIN PLUG UNSCREW PLUGS AND CONNECT PROPERLY SIZED FIELD PROVIDED FITTINGS AND DRAIN LINES GREEN MAIN DRAIN PLUG Figure 7 Drain Line Connections 2 Install properly sized field provided connection fittings and connect primary drain line to the main drain pan connection NOTE When installing drain line connection fittings to the drain pan hand tighten the fitting and use a thread sealant Over t...

Page 8: ... 2 CUT TO REQUIRED LENGTH SIDE VIEW Figure 8 Typical Main and Overflow Drain 7 Route the drain line to the outside or to an appropriate drain Drain lines must be installed so they do not block service access to the front of the air handler A 24 clearance is required for filter coil or blower removal and service access NOTE Check local codes before connecting the drain line to an existing drainage ...

Page 9: ... provided by the filter manufacturer against the data given in the appropriate Product Specifications Additional information is provided in Service and Application Note ACC002 August 2000 IMPORTANT Installing Duct System Connect supply air duct to the flange on top of the air handler If an isolation connector is used it must be nonflammable Field Fabricated Return Air Duct Flange For Horizontal Ap...

Page 10: ...ORE INSTALLING EITHER REMOVE OR PUSH PIPE WRAPPING BACK THROUGH HOLE IN PIPING PLATE BEFORE LINE SET CONNECTION AND BRAZING CONNECT PIPES NOTE REFRIGERANT LINE SETS SHOULD BE ROUTED TO ALLOW FILTER ACCESSIBILITY PLEASE READ IMPORTANT ISSUES CONCERNING BRAZING OPERATIONS IN THE BRAZING REFRIGERANT LINES SECTION BEFORE PROCEEDING CONNECT GAUGES AND START NITROGEN FLOW FLOW REGULATED NITROGEN AT 1 TO...

Page 11: ... Recommended line length is 50 or less If more than 50 line set is required contact Technical Services NOTE Sealing the Unit Seal the unit so that warm air is not allowed into the cabinet Warm air introduces moisture which results in water blow off problems This is especially important when the unit is installed in an unconditioned area If installed in an unconditioned space sealant should be appl...

Page 12: ...local building codes Refer to following wiring diagrams See unit nameplate for minimum circuit ampacity and maximum over current protection size Electrical wiring disconnect means and over current protection are to be supplied by the installer Refer to the air handler rating plate for maximum over current protection minimum circuit ampacity as well as operating voltage Select the proper supply cir...

Page 13: ... 208 Volt Conversion 1 Disconnect all power supplies 2 Remove the air handler access panel 3 Using the wiring diagram located on the unit access panel as a reference move the 2 connected black transformer leads from the 240 volt terminal on the transformer to the 208 volt terminal on the transformer 208 240 VOLT TRANSFORMER PRIMARY SECONDARY 240 Volts 208 Volts Figure 14 Converting Unit from 240VA...

Page 14: ...507788 01 Issue 2007 Page 14 of 20 4KW 5KW Figure 16 Typical Wiring Diagram BCE5E Air Handler with Electric Heat Constant Torque Motor ...

Page 15: ...1060 4 Nominal 3 ton match with electric heat 1440 1400 1330 1280 1240 5 High static application 1540 1475 1430 1380 1300 42 1 Fan Only 990 915 860 810 725 2 Matched with 3 ton condensing unit 1190 1150 1100 1060 1020 3 Nominal 3 5 ton match without electric heat 1390 1350 1315 1280 1230 4 Nominal 3 5 ton match with electric heat 1665 1625 1585 1550 1510 5 High static application 1750 1710 1675 16...

Page 16: ...ing for electric heat Table 5 Checkout Procedures NOTE Refer to outdoor unit installation instructions for system start up instructions and refrigerant charging instructions Pre Start Up Checks Is the air handler properly and securely installed If horizontally configured is the unit sloped up to 5 8 inch toward drain lines Will the unit be accessible for servicing Has an auxiliary pan been provide...

Page 17: ...ween R and W1 is completed by the second stage heat room thermostat Circuit R W1 energizes a heat sequencer The completed circuit will energize supplemental electric heat if applicable Units with a second heat sequencer can be connected with the first sequencer to W1 on the thermostat They may also be connected to a second heating stage W2 on the thermostat sub base Emergency Heat Heating Heat Pum...

Page 18: ...ads to sheet metal corrosion and subsequently component failure Repairing Damaged Insulation Areas of condensation on the cabinet surface are an indication that the insulation is in need of repair If the insulation in need of repair is otherwise in good condition the insulation should be cut in an X pattern peeled open glued with an appropriate all purpose glue and placed back against the cabinet ...

Page 19: ...ing Mode Return Duct Temperature ___________ THERMOSTAT Adjusted and Programmed Return External Static ______ ______ Total External Static ______ ______ 6 Supply Duct Temperature ___________ Temperature Drop ___________ TEMPERATURE RISE Heating Mode Return Duct Temperature __________ Supply Duct Temperature __________ Temperature Rise __________ Operation Explained to Owner 9 Explained Operation o...

Page 20: ...______ Total External Static ______ ______ 6 6 Supply Duct Temperature ___________ Temperature Drop ___________ TEMPERATURE RISE Heating Mode Return Duct Temperature __________ Supply Duct Temperature __________ Temperature Rise __________ Operation Explained to Owner 9 Electric Heat Amps 7 Explained Operation of System to Homeowner Technician s Name _______________________Date Start Up Performanc...

Reviews: