York B3CH 048 and 060 - Manuals

Page 2 - FIGURES; No. Description Page; TABLE OF CONTENTS

035-12984-001-A-0204 2 Unitary Products Group General................................................................................1Inspection ............................................................................1Reference .......................................................................

Page 3 - INSTALLATION

LIMITATIONS These units must be installed in accordance with national andlocal or municiple safety codes: Refer to Table 1 for UnitApplication Data. If components are to be added to a unit to meet local codes, they are to be installed at the dealer's and / or the customer's expense. LOCATION Use the...

Page 5 - TABLE 2 - AIR FLOW LIMITATIONS

035-12984-001-A-0204 Unitary Products Group 5 FIG. 3 - TYPICAL FIELD WIRING CONTROL WIRING POWER WIRING NOMINAL HEATER SIZE KW VOLTAGE UNIT MODEL SIZE, NOMINAL TONS 4 5 MINIMUM SUPPLY AIR CFM 7 10152030 380/415-3+N-50 1,3001,3001,3001,300 – 1,6001,6001,6001,6001,600 TABLE 2 - AIR FLOW LIMITATIONS TO...

Page 6 - OPTIONAL ECONOMIZER RAIN HOOD; NOTE: Sensor must be positioned so that the sensing ports

heater accessory installation instruction for the heaterelectrical data. The minimum air flow limitations across these heaters arelisted in Table 2. OPTIONAL ECONOMIZER RAIN HOOD The following procedure should be used when assembling aneconomizer rain hood onto a unit. Refer to Figure 4. Theoutdoor ...

Page 7 - TABLE 3 - PHYSICAL DATA; Basic Unit

035-12984-001-A-0204 Unitary Products Group 7 FIG. 5 - ENTHALPY SET POINT ADJUSTMENT MODELS BCH 048 060 SUPPLY AIR BLOWER CENTRIFUGAL BLOWER (Dia. xWd.,mm/in.)FAN MOTOR HP (Direct-Drive Units)FAN MOTOR HP (Belt-Drive Units) 305 x254 12 x 10 0.75 NA 305 x 254 12 x 10 NA1.5 INDOOR COIL ROWS DEEPFINS P...

Page 8 - OUTDOOR COIL; UTILITIES ENTRY DATA

035-12984-001-A-0204 8 Unitary Products Group FIGURE 6 - DIMENSIONS & CLEARANCES Front 610mm (24") Back 25mm (12") (Less Economizer)914mm (36") (With Economizer) Left Side (Filter Access) 610mm (24") (Less Economizer)914mm (36") (With Economizer) Right Side (OD Coil) 610mm (2...

Page 9 - REAR VIEW

035-12984-001-A-0204 Unitary Products Group 9 DETAIL “B”UNIT WITH FIXED OUTDOOR AIR / BAROMETRIC RELIEF RAINHOOD 111 4 3 8 “ 260 10 1 4 “ 89 3 1 2 “ 210 8 1 4 A B 454 17 7 8 “ 184 7 1 4 “ 416 16 3 8 “ 260 10 1 4 “ 117 4 5 8 “ 1340 44 7 8 “ L.H. END VIEW REAR VIEW L.H. END VIEW REAR VIEW 638 27 1 2 “...

Page 10 - TABLE 4 - SUPPLY AIR PERFORMANCE - BCH048; TABLE 5 - SUPPLY BLOWER PERFORMANCE - BCH060

035-12984-001-A-0204 10 Unitary Products Group TABLE 4 - SUPPLY AIR PERFORMANCE - BCH048 MODEL AIR FLOW m 3 /s / CFM Available External Static Pressure -Pa/ IWG* 223 / 0.90 248 / 1.00 273 / 1.10 298 / 1.20 322 / 1.30 347 / 1.40 372 / 1.50 RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts RPM Watts R...

Page 12 - NOTE: Prior to each cooling season, the crankcase heater; COOLING SEQUENCE OF OPERATION; CONTROL; OPERATION

screw fully clockwise and then energize and de-energizeterminals “R” to “G”. With terminals “R” to “G” energized,turn the minimum position screw counterclockwise until thedesired minimum position has been attained. 11. Replace the filter section access panel. COOLING SYSTEM The unit has an air-coole...

Page 13 - LOCKOUT CONTROL; minute delay before starting.; CHECKING SUPPLY AIRFLOW; NOTE: The tubes must be inserted and held in a position per-

During troubleshooting, the defrost time can be reduced to 20seconds by shorting out the SW1 test pegs on the module. Thepegs are 13mm ( 1 2 in.) long, 1mm ( 3 16 in.) apart and are mounted on a white base. See Figure 8. LOCKOUT CONTROL Any one of four conditions will put the system into a lock-outc...

Page 14 - NORMAL MAINTENANCE; CAUTION: Prior to any of the following maintenance proce-; MAINTENANCE

3. Using an inclined manometer, determine the pressure drop across a dry indoor coil. Since the moisture on an indoorcoil may vary greatly, measuring the pressure drop across awet coil under field conditions would be inaccurate. Toensure a dry coil, the compressors should be de-energizedwhile the te...