explosion proof air conditioning

    Birdwell

    CAD

    CAD

    CAD

    CAD

    CAD

    CAD

    UNIT DIMENSIONS (INCHES)

    UNIT MODEL

    A

    B

    C

    D

    E

    F

    G

    H

    J

    K

    L
    BTB18XRM 34 56 24 28 22 33 1/2 55 1/2 2 22 1/2 28 1/2 30 1/2
    BTB24XRM 34 56 24 28 22 33 1/2 55 1/2 2 22 1/2 28 1/2 30 1/2
    BTB30XRM 32 72 31 28 35 31 1/2 71 1/2 2 35 1/2 31 1/2 28 1/2
    BTB36XRM 32 72 31 28 35 31 1/2 71 1/2 2 35 1/2 31 1/2 28 1/2
    BTB42XRM 32 72 31 28 35 31 1/2 71 1/2 2 35 1/2 31 1/2 28 1/2
    BTB48XRM 32 72 31 28 35 31 1/2 71 1/2 2 35 1/2 31 1/2 28 1/2
    BTB60XRM 44 72 31 40 38 43 1/2 71 1/2 2 38 1/2 28 1/2 40 1/2
    BTB72XRM 47 94 36 43 52 5/8 46 1/2 93 1/2 2 53 1/8 35 7/8 43 1/2
    BTB90XRM 47 94 36 43 52 5/8 46 1/2 93 1/2 2 53 1/8 35 7/8 43 1/2
    BTB120XRM 47 94 36 43 52 5/8 46 1/2 93 1/2 2 53 1/8 35 7/8 43 1/2

      Physical Data

    UNIT MODEL NO. BTB18XRM BTB24XRM BTB30XRM  BTB36XRM BTB42XRM
    OPERATING WEIGHT (lbs.) (APPROX)

    555

    560

    585

    595

    975

    NOMINAL CAPACITIES

    Cooling (B.T.U.H.)@ 60HZ.

    Heating K.W. (opt.)

    Air Flow (C.F.M.)

    -

    18,000

    6

    600

    -

    24,000

    6

    800

    -

    30,000

    6/12

    1200

    -

    36,000

    6/12

    1200

    -

    42,000

    6/12

    1600
    VOLTAGE AVAILABLE

    1 or 3 Phase

    50 or 60 Hz.

    -

    208/230

    460

    -

    208/230

    460

    -

    208/230

    460

    -

    208/230

    460

    -

    208/230

    460
    COMPRESSOR(S)

    Amps. @ 208/230V/ 1/3 Ph

    Amps 460 V. 3ph

    -

    9.3/9.3

    4.1

    -

    13.6/8.6

    4.3

    -

    15.0/10.7

    5.0

    -

    17.9/11.4

    5.7

    -

    20.4/13.9

    7.1
    CONDENSER SECTION

    Coil Face Area (sq. in.)

    Rows/Fins per inch

    Motor H.P. (r.p.m.)

    -

    572

    4/12

    1/4 (1725)

    -

    572

    4/12

    1/4 (1725)

    -

    572

    4/12

    1/2 (1200)

    -

    572

    4/12

    1/2 (1200)

    -

    572

    6/12

    1 (1800)
    EVAPORATOR SECTION

    Coil Face Area (sq. in.)

    Rows/Fins per inch

    Motor H.P. (Qty)

    -

    180

    3/12

    1/4 (1)

    -

    220

    3/12

    1/4 (1)

    -

    440

    3/12

    2 (1)

    -

    440

    3/12

    2 (1)

    -

    440

    4/12

    2 (1)
    REFRIGERANT

    R-22

    R-22

    R-22

    R-22

    R-22
    FILTER - Type: PLEATED 30% EFFICIENT

    (Nominal Size) - Size

    (Number)

    -

    24x12x2

    (1)

    -

    24x12x2

    (1)

    -

    24x18x4

    (1)

    -

    24x18x4

    (1)

    -

    24x18x4

    (1)

            (Physical Data continued)

    UNIT MODEL NO. BTB48XRM BTB60XRM BTB72XRM BTB90XRM BTB120XRM
    OPERATING WEIGHT (lbs.) (APPROX)

    980

    995

    1065

    1180

    1180

    NOMINAL CAPACITIES

    Cooling (B.T.U.H.)@ 60HZ.

    Heating K.W. (opt.)

    Air Flow (C.F.M.)

    -

    48,000

    6/12

    1600

    -

    60,000

    6/12

    2000

    -

    72,000

    6/12/18/24

    2400

    -

    90,000

    6/12/18/24

    3000

    -

    120,000

    6/12/18/24

    4000
    VOLTAGE AVAILABLE

    1 or 3 Phase

    50 or 60 Hz.

    -

    208/230

    460

    -

    208/230

    460

    -

    208/230

    460

    -

    208/230

    460

    -

    208/230

    460
    COMPRESSOR(S)

    Amps. @ 208/230V/ 1/3 Ph

    Amps 460 V. 3ph

    -

    28.0/19.3

    7.5

    -

    32.1/19.3

    10.0

    -

    27.9/20.7

    10.0

    -

    N.A./32.1

    16.4

    -

    N.A./42.0

    19.2
    CONDENSER SECTION

    Coil Face Area (sq. in.)

    Rows/Fins per inch

    Motor H.P. (r.p.m.)

    -

    572

    6/12

    1 (1800)

    -

    870

    4/12

    1 (1800)

    -

    1088

    4/12

    1-1/2 (1800)

    -

    1088

    4/12

    1-1/2 (1800)

    -

    1088

    6/9

    2 (1800)
    EVAPORATOR SECTION

    Coil Face Area (sq. in.)

    Rows/Fins per inch

    Motor H.P. (Qty)

    -

    440

    4/12

    2 (1)

    -

    560

    3/12

    2 (1)

    -

    780

    4/12

    2 (2)

    -

    780

    5/12

    2 (2)

    -

    780

    5/12

    2 (2)
    REFRIGERANT

    R-22

    R-22

    R-22

    R-22

    R-22
    FILTER - Type: PLEATED 30% EFFICIENT

    (Nominal Size) - Size

    (Number)

    -

    24x18x4

    (1)

    -

    36x18x4

    (1)

    -

    25x20x4

    (2)

    -

    25x20x4

    (2)

    -

    25x20x4

    (2)

      Note: Capacities based on standard ARI conditions (80/67 EAT, 95F AMB)

      Standard Specifications Guideline

      Furnish and install a packaged, totally self contained, explosion proof (general purpose optional) roof mount air conditioner is ETL certified by Intertek Testing Services to be in compliance with applicable UL and CSA codes and standards for Class I or II, Divisions I or II hazardous locations. The unit shall include an *explosion proof full hermetic compressor. The evaporator and condenser fan motors shall be *explosion proof. High voltage electrical controls shall be in one NEMA 7 *explosion proof control box. Low voltage electrical controls shall be served by an intrinsically safe relay. Unit options shall include *explosion proof electric heat and Heresite baked phenolic or epoxy coil coatings for corrosion protection.

      The entire unit shall be constructed of 16 gauge type 304 (type 316 optional) stainless steel for maximum protection from corrosive environments. The evaporator and condenser coils shall have copper tubes and aluminum fins. The evaporator section shall be insulated with 1" thick 1 1/2 lbs. density acoustic insulation. The compressor shall be mounted on external vibration isolators for quiet operation. The compressor shall be high efficiency full hermetic type with internal pressure relief valves. A pre-trapped condensate drain connection shall be provided.

      The unit controls shall include a thermostatically controlled expansion valve, high and low refrigerant pressure cut-out switches, solid state time delay relay to prevent short cycling and frost control to stop compressor in the event of coil icing due to dirty filter, etc. The unit shall be fully serviceable from side access doors and external grilles. Provide service valves for pump-down capability. The unit shall be equipped with refrigerant sight glass with moisture indicator for aid in servicing system.

      The system shall be a model BTB__X__C__-RM as manufactured by The Birdwell Company inHouston, Texas (no equal). Manufacturer reserves the right to change any product specifications without notice.

      *(Div. 1 units)