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OUTDOOR COIL - Dirt should not be allowed to accumulate on
the outdoor coil surface or other parts in the air circuit. Cleaning
should be as often as necessary to keep coil clean. Use a brush,
vacuum cleaner attachment, or other suitable means. If water
is used to clean coil, be sure power to the unit is shut off prior
to cleaning.

NOTE: Exercise care when cleaning the coil so that the coil fins

are not damaged.

Do not permit the outdoor air discharge to be obstructed
by overhanging structures of shrubs.

MAINTENANCE

NORMAL MAINTENANCE

CAUTION: Prior to any of the following maintenance proce-

dures, shut off all power to the unit to prevent
personal injury.

FILTERS - Inspect once a month. Replace disposable or clean
permanent type as necessary. DO NOT replace permanent type
with disposable.

MOTORS - Indoor fan and  outdoor fan motors are permanently
lubricated and require no maintenance.

SECURE OWNER’S APPROVAL

When the system is functioning properly, secure the owner’s approval. Show him

the location of all disconnect switches and the thermostat. Teach him how to start and stop the unit and how to adjust tem-
perature settings within the limitations of the system.

FIG. 8 - AMBIENT MODIFIED TIME/TEMPERATURE CONTROL

T1 - 50 MINUTE SETTING

T2 - 80 MINUTE SETTING

T3 - 110 MINUTE SETTING
(Factory Set Point)

SHORTING PEGS TO
OVERRIDE TIMER
FOR SERVICE

MOVABLE JUMPER
WIRE TO CHANGE
DEFROST TIMER

511.06-N2W

Unitary Products Group

13

Содержание BCCB 090

Страница 1: ...s available in the following reference forms 530 18 N9 1V Electric Heater Accessory 530 18 N3 2V Economizer Accessory 530 18 N3 8V Motorized Outdoor Air Damper Accy 530 18 N3 9V Manual Outdoor Air Dam...

Страница 2: ...3 Physical Data 6 4 Point Loads 8 5 Supply Air Br Performance 9 6 Accessory Static Resistances 9 7 Blower Motor and Drive Data 10 8 Heat Anticipator Setting 11 9 Blower Motor Pulley Adjustment 11 FIGU...

Страница 3: ...is recommended to prevent mud splashing WARNING The unit should not be installed in an area where mud or ice could cause personal injury Remember that condensate will drip from the outdoor coil durin...

Страница 4: ...provide electric resistance heat only The compressors will not run The pilot light will indicate that the switch is on EM HT Nine conductors are required for this application POWER AND CONTROL WIRING...

Страница 5: ...4 1 7 1 5 8 130 64 52 2 3 1 3 1 3 5 7 2 6 2 1 7 5 3 4 2 7 42 0 21 1 17 7 43 8 21 9 18 3 50 25 20 50 25 20 120 208 230 3 60 460 3 60 575 3 60 16 7 17 3 9 6 8 3 150 73 62 3 5 2 5 2 5 7 5 3 4 2 7 10 6 4...

Страница 6: ...FINS PER INCH 15 13 FACE AREA Sq Ft 7 8 13 4 OUTDOOR FANS Two Per Unit PROPELLER DIA in 24 ea 24 ea FAN MOTOR HP 1 2 ea 3 4 ea NOM CFM TOTAL 2900 ea 4400 ea OUTDOOR COIL ROWS DEEP 2 2 FINS PER INCH 1...

Страница 7: ...ontrol Wiring Side 7 8 Bottom B 2 Power Wiring Side or Bottom Knockouts in the bottom of the unit can be located by the slice in the insulation UTILITIES ENTRY DATA RETURN AIR SUPPLY AIR OUTDOOR AIR O...

Страница 8: ...355 460 388 NOTE These weights are with economizer and 36 kW electric heat UNIT BCB 6 POINT LOADS LBS TOTAL A B C D E F 090 1 154 154 188 211 235 193 173 120 1 504 200 237 272 307 259 229 NOTE These...

Страница 9: ...2 62 2 45 0 92 2 91 2 72 1050 1 89 1 98 1 84 1 78 2 25 2 10 1 57 2 55 2 37 1 35 2 86 2 67 1 12 3 17 2 96 1090 2 08 2 12 1 97 1 97 2 41 2 24 1 78 2 72 2 54 1 55 3 06 2 86 MODEL BCB120 SIDE DUCT APPLIC...

Страница 10: ...compressors out when the suction line temperature drops below 26 F This is an automatic reset device HEATING SEQUENCE OF OPERATION The following sequence of operation is based on using a standard YOR...

Страница 11: ...filter access and the blower access panels as shown in Figure 4 2 Insert at least 8 of 1 4 inch tubing into each of these holes for sufficient penetration into the air flow on both sides of the indoo...

Страница 12: ...rost time cycle will restart 10 minutes after the start of the defrost cycle even though the liquid sensor terminated defrost after 3 minutes During troubleshooting the defrost time can be reduced to...

Страница 13: ...power to the unit to prevent personal injury FILTERS Inspect once a month Replace disposable or clean permanent type as necessary DO NOT replace permanent type with disposable MOTORS Indoor fan and ou...

Страница 14: ...511 06 N2W 14 Unitary Products Group...

Страница 15: ...511 06 N2W Unitary Products Group 15...

Страница 16: ...es 511 06 398 Subject to change without notice Printed in U S A Copyright by Unitary Products Group 1998 All rights reserved 511 06 N2Z Code SBL F 5005 York Drive Norman Oklahoma 73069 Unitary Product...

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