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507788-01

Issue 2007

Page 18 of 20

Cabinet Insulation

DAMAGED INSULATION MUST BE REPAIRED OR

REPLACED

before the unit is put back into operation.

Insulation loses its insulating value when wet, damaged,

separated or torn.

IMPORTANT

Matte- or foil-faced insulation is installed in indoor

equipment to provide a barrier between outside air

conditions (surrounding ambient temperature and humidity)

and the varying conditions inside the unit. If the insulation

barrier is damaged (wet, ripped, torn or separated from the

cabinet walls), the surrounding ambient air will affect the

inside surface temperature of the cabinet.

The temperature/humidity difference between the inside

and outside of the cabinet can cause condensation on the

inside or outside of the cabinet which leads 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 surface, being careful

to not overly compress the insulation so the insulation can

retain its original thickness. If such repair is not possible,

replace the insulation. If using foil-faced insulation, any

cut, tear, or separations in the insulation surface must be

taped with a similar foil-faced tape.

1. CUT INSULATION IN X PATTERN
2. APPLY GLUE
3. PRESS GLUED TABS AGAINST CABINET

GLUE - Make sure there is
full coverage of glue on the
metal or insulation so there
are no areas where air
pockets may form which
can lead to sweating.

Figure 17. Recommended Blower Speed Taps

Содержание BCE5E Series

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

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