Carrier 50BK- Manuals

FAN MOTOR POSITION VERTICAL DISCH TOP MOUNTED AIRFLOWFRONT ■ FILTER RACK NOTE.Motor pulley on left side of unit — vertical discharge Motor pulley on right side of unit — horizontal discharge Fig. 3 — Fan and Motor Arrangements 50BJ.BK028.034 Fig. 4 — 50BJ,BK028 and 034 Horizontal Fan Motor Mounting ...

Table 2 — Setscrew Torque Requirements A VsfmCAL DfSC^íARS£ BOLT SIZE 1 RECOMMENDED (in.) TORQUE (Ib-ft) % 1 15-18 Vs 1 22-25 Fig. 9 — Wire Tie Locations W H E E L # VENTURI 7 SCROLL DIMENSION " d " MUST BE EQUAL ALL AROUND Fig. 10 — Horizontal Wheel Centering Adjust as follows: Units 50BJ,B...

Weatherproof external ductwork, joints and openings with flashing and mastic in accordance with applicable codes. Ducts passing thru an unconditioned space must be insulated and covered with a vapor barrier. Step 10 — Check Return Air Filters Unit 50BJ.BK (016-034 only) Be sure that the filters are ...

Fig. 13 50BJ024 City Water Condenser Piping Conversion 1X1- i|HXl-RETURN CONNECT TO»rn COMPRESSOR y {X1-— d J o — CONNECT WATER REGULATING VALVE TO COMPRESSOR ^^STRAINER ------l||-C]— SUPPLY D istrainer -Cxi- HXh Nominal supply and return lines must be sized to provide required gallons per minute at...

Table 4 — Recommended Line Sizes (in.) (50BK Condenserless Models) HG — Hot Gas Line (OD in ] L — Liquid Line (OD in ) ‘Sweat connections UNIT 50BK CONN. LENGTH OF LINE (ft) SYSTEM SIZES* 20 40 60-80 L HG L HG L HG L HG 016 — % ^Ve Ve 1'/s ys P/s . ys P/s 024 1 & 2 % Vs Y b ys Ye P/s ys P/s 028 ...

Do not use drain line smaller than size listed in Table 5. If required, cut hole in panel for drain line. Piteh drain downward toward an open drain sump. Provide a trap at least 3 in. high with plugged tee for cleaning. Fill trap with water to make an air seal. Observe all sanitary codes. Step 14 — ...

Table 6 — Maximum Wire Size for Power Terminal Block* VOLTS/PHASE UNIT 50BJ.BK 016 024 028,034 044t 054,064t 208-230/3 2/0 2/0 350 350 500 460/3 2/0 2/0 2/0 350 350 575/3 2/0 2/0 2/0 350 350 *Select wire size per NEC and connect supply wires to factory- supplied pigtail wire connectors tMaximum wire...

(LEDs) should glow as corresponding cooling stages come on. In addition, indicating lights on cover of aecessory timer eontrol panel should light. ^ NOTE: Depending on job eonditions and dif­ ferential between setpoint and discharge tem­ peratures, minimum time for all stages to eome on is 22 minute...

Step 3 — Matched Set of Belts — Always usematched set of belts. NEVER mix new and used belts andjor mix belts from different manufacturers. Step 4 — Belt Installation: a. Move pulleys together to facilitate belt installa­ tion. NEVER pry or roll belt on to pulleys as this may cause serious damage to...

Evaporator Coil — Protect coil when working inside unit. (See screened CAUTION note, page 15.) Remove dirt and debris from evaporator coil as required. Clean with a stiff brush, vacuum cleaner or compressed air. Straighten mashed or bent coil fins with a fin comb of the correct spacing. Table 1 list...

CONTROL SEQUENCE All 50BJ,BK Units — The indoor fan circuit breaker (IFCB) must be closed for the control circuit to be energized. When breaker is closed, the SYSTEM light will be on. The 044-064 units are equipped with a switch labeled STANDBY. When switch is closed, the indoor fan contactor (IFC) ...

For replacement items use Carrier Specified Parts Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations Form 50BJ,BK-4SI Supersedes 50BJ,BK-2SI Printed in U S A 6-83 PC 111 Book 1 Tab 2a Catalog No 535-031