Lennox CBA25UH Series Скачать руководство пользователя | Manualshive

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Page 11

COIL

CBA25UHV units have dual slab coils arranged in an A

configuration. Each coil has two or three rows of alumi

-

num tubes fitted with ripple-edged aluminum fins. An ex

-

pansion valve feeds multiple parallel circuits through the

coils. The coil is designed to easily slide out of the unit

cabinet.

PLASTIC DRAIN PANS

Drain pans are provided and installed on the CBA25UHV.

The drain pans are made from fiberglass filled plastic.

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Содержание CBA25UH Series

Страница 1: ...UHV Unit Dimensions Upflow inches mm 2 Specifications and Electrical Data 3 Model Number Identification 4 Adjusting the BDC3 Blower Control 4 Adjusting the Blower Speed 4 Blower Data 6 Application 10...

Страница 2: ...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 Dimensions 018 024 030 036 042 048 060 in mm in mm...

Страница 3: ...6 Nominal tonnage 1 5 2 2 5 3 Connections Suction Vapor line o d in sweat 3 4 3 4 3 4 7 8 Liquid line o d in sweat 3 8 3 8 3 8 3 8 Condensate in fpt 2 3 4 2 3 4 2 3 4 2 3 4 Indoor Coil Net face area f...

Страница 4: ...e speed motor that is capable of maintaining a spec ified CFM throughout the external static range A particu lar CFM can be obtained by positioning jumpers COOL HEAT and ADJUST on the BDC3 control The...

Страница 5: ...example that the normal adjustment setting for heat speed position 4 is 1000 CFM The adjustment setting for that position is 1080 CFM and for the adjust ment setting is 910 CFM After the adjustment s...

Страница 6: ...fm cfm 450 670 900 1120 340 450 650 770 450 670 900 1120 NORM 420 620 820 1050 300 400 600 700 420 620 820 1050 390 570 750 915 280 390 500 650 390 570 750 915 NOTES The effect of static pressure filt...

Страница 7: ...speed setting Lennox Harmony III Zoning System applications minimum blower speed is 450 cfm BLOWER DATA CBA25UHV 048 BLOWER PERFORMANCE 0 through 0 80 in w g External Static Pressure Range ADJUST Jump...

Страница 8: ...On Demand 0 VAC High 60 65 70 PRECISION MODE operates independent of a Y1 thermostat demand Normal Operation 1 On On On Acceptable 24 VAC High 100 midity is greater than set point Dehumidification Cal...

Страница 9: ...Demand 0 VAC High 60 65 70 Dehumidification Call ONLY 1 On On On On Demand 0 VAC High 60 65 70 midity setpoint by allowing the room stat setpoint Jumpers at indoor unit with a two stage outdoor unit W...

Страница 10: ...pening The electric heat control arrangement is detailed in the electric heat section of this manual TRANSFORMER All CBA25UHV series units use a single line voltage to 24VAC transformer mounted in the...

Страница 11: ...alumi num tubes fitted with ripple edged aluminum fins An ex pansion valve feeds multiple parallel circuits through the coils The coil is designed to easily slide out of the unit cabinet PLASTIC DRAIN...

Страница 12: ...Minimum Circuit Ampacity 3 Maximum Overcurrent Protection Volt kW 1 Btuh 5 kW ECBA25 5 16Y36 Terminal Block ECBA25 5CB 16Y39 30A Circuit Breaker 208 3 6 12 300 3 9 27 30 220 4 0 13 800 3 9 28 30 230 4...

Страница 13: ...20 8 0 27 500 3 9 51 60 230 8 8 30 000 3 9 53 60 240 9 6 32 700 3 9 55 60 12 5 kW ECBA25 12 5CB 16Y43 1 50A and 1 25A Circuit Breaker 208 9 4 32 000 3 9 42 19 4 45 4 20 61 70 220 10 5 35 800 3 9 45 20...

Страница 14: ...220 8 0 27 500 3 9 51 60 230 8 8 30 000 3 9 53 60 240 9 6 32 700 3 9 55 60 12 5 kW ECBA25 12 5CB 16Y43 1 50A and 1 25A Circuit Breaker 208 9 4 32 000 3 9 42 19 4 45 4 20 61 70 220 10 5 35 800 3 9 45 2...

Страница 15: ...2 60 220 8 0 27 500 6 9 54 60 230 8 8 30 000 6 9 57 60 240 9 6 32 700 6 9 59 60 12 5 kW ECBA25 12 5CB 16Y43 1 50A and 1 25A Circuit Breaker 208 9 4 32 000 6 9 46 19 50 4 20 65 70 220 10 5 35 800 6 9 4...

Страница 16: ...50A and 1 25A Circuit Breaker 208 9 4 32 000 6 9 46 19 50 4 20 65 70 220 10 5 35 800 6 9 48 20 50 4 20 68 70 230 11 5 39 200 6 9 50 21 50 25 71 80 240 12 5 42 600 6 9 52 22 4 60 25 74 80 15 kW ECBA25...

Страница 17: ...to Install Heat Element 5 Slide the electric heat section into the air handler Be careful that the heating elements do not rub against the sheet metal opening when they slide into the air handler The...

Страница 18: ...ity and maximum overcurrent protec tion size Select the proper supply circuit conductors in accordance with tables 310 16 and 310 17 in the National Electric Code ANSI NFPA No 70 or tables 1 through 4...

Страница 19: ...oom temperature 2 Check the heat pump and the heat section for normal operation 3 Set the thermostat to desired setting 4 Affix the wiring diagram sticker to air handler scroll aligned with circuit br...

Страница 20: ...pen and free of any debris Also check to make sure that no debris has fallen into the drain pan during installation that may plug up the drain opening 4 Rotate drain pan 180 front to back and install...

Страница 21: ...orted If you use a chain or strap use a piece of angle iron or sheet metal attached to the unit either above or below to support the length of the cabinet Use securing screws no longer than 1 2 inch t...

Страница 22: ...t damage injury or death When using a high pressure gas such as nitrogen to pressurize a refrigeration or air conditioning system use a regulator that can control the pressure down to 1 or 2 psig 6 9...

Страница 23: ...QUIREMENTS NOTE REFRIGERANT LINE SETS SHOULD BE ROUTED TO ALLOW FILTER ACCESSIBILITY NOTE CBA25UHV SERIES UNITS USE NITROGEN OR DRY AIR AS A HOLDING CHARGE IF THERE IS NO PRESSURE WHEN THE RUBBER PLUG...

Страница 24: ...PER 3 METERS NOTE WHEN A AIR HANDLER IS LOCATED ABOVE A FINISHED SPACE THE SECONDARY DRAIN PAN MUST HAVE A LARGER FOOTPRINT THAN THE AIR HANDLER MAIN DRAIN TO APPROVED DRAIN FOR NEGATIVE PRESSURE COI...

Страница 25: ...ain line after installation 1 Pour several quarts of water into drain pan enough to fill drain trap and line 2 Check to make sure the drain pan is draining completely no leaks are found in drain line...

Страница 26: ...t be drawn from a room where this air handler or any gas fueled appliance i e water heater or carbon monoxide producing device i e wood fireplace is installed Make sure the liquid line and suction lin...

Страница 27: ...ically ground air handler Connect ground wire to ground terminal marked GND Failure to do so can result in death or electrical shock Inspecting and Replacing Filters IMPORTANT Filter access door must...

Страница 28: ...Page 28 Wiring Diagrams FIGURE 24 Typical Wiring Diagram CBA25UHV Air Handler with Electric Heat Variable Speed Motor...

Страница 29: ...Page 29 WARNING USE COPPER CONDUCTORS ONLY FIGURE 25 Low Voltage Connections Variable Speed Motor...

Страница 30: ...tdoor unit being used Have all unused parts and packaging been disposed of Is the filter clean in place and of adequate size Is the wiring neat correct and in accordance with the wiring diagram Is the...

Страница 31: ...they may also be connect ed to a second stage on the subbase HEATING HEAT PUMP When the thermostat calls for heating 24 volts is put on the blower time delay relay coil Then normally open con tacts c...

Страница 32: ...Duct Temperature ___________ THERMOSTAT Adjusted and Programmed Return External Static ______ ______ Total External Static ______ ______ 6 Supply Duct Temperature ___________ Temperature Drop _______...

Страница 33: ...ternal Static ______ ______ 6 6 Supply Duct Temperature ___________ Temperature Drop ___________ TEMPERATURE RISE Heating Mode Return Duct Temperature __________ Supply Duct Temperature __________ Tem...

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