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Replacement Units & Parts - HBXB-HW & MBXB-HW Series

Replacement units & coils for fan coils built by: First Co, First Company, AE Air, Applied Environmental Air, TCS Inc.  OEM replacement hot water heating coils, DX evaporator cooling coils.

  • The HBXB-HW Series consists of models:
    • 18HBXB-HW, 24HBXB-HW, 30HBXB-HW, 36HBXB-HW
  • The MBXB-HW Series consists of models:
    • 18MBXB-HW, 24MBXB-HW, 30MBXB-HW, 36MBXB-HW
    • 18MBXB-2HW, 24MBXB-2HW, 30MBXB-2HW, 36MBXB-2HW
    • 18MBXB-3HW, 24MBXB-3HW, 30MBXB-3HW, 36MBXB-3HW
    • "-2HW" is a 2-row hot water heating coil
    • "-3HW" is a 3-row hot water heating coil
  • Or enter coil Product Code number in the above site search bar.
  • Note: Pictures shown are for purpose of illustration only.
Grid View List View

** COIL NOTE: If coil was in a POTABLE WATER system and failed (excessive velocity or erosion), the use of a FLOW CONTROL DEVICE could help extend coil life by reducing flow to recommended GPM. Refer to product spec at www.firstco.com to check flow.
9-320-441 - Coil HW 60HBXB-HW 20MB-4HW 320-441 (20MB-4HW) heating coil

9-320-441 - Coil HW 60HBXB-HW 20MB-4HW 320-441 (20MB-4HW) heating coil
9-320-446 - Coil HW 18/24HDX MB - 9-320-446 (8MB-2HW) heating coil (can use 3-row coil 9-320-447)

9-320-446 - Coil HW 18/24HDX MB - 9-320-446 (8MB-2HW) heating coil (can use 3-row coil 9-320-447)
9-320-447 - Coil HW 18/24HDX 8MB -W - 9-320-447 (8MB-3HW, 18/24MBX-3HW 18-24HBXB-HW, FWA30-HW) heating coil

9-320-447 - Coil HW 18/24HDX 8MB -W - 9-320-447 (8MB-3HW, 18/24MBX-3HW 18-24HBXB-HW, FWA30-HW) heating coil
9-320-448 - Heating Coil HW - 30/36HBX 10/12MB-3HW (FWA50-HW)

9-320-448 - Heating Coil HW - 30/36HBX 10/12MB-3HW (FWA50-HW)
9-320-449 - Coil HW 48HBX 16MB - 320-449 (16MB-4HW 48XMBXR-4HW) heating coil

9-320-449 - Coil HW 48HBX 16MB - 320-449 (16MB-4HW 48XMBXR-4HW) heating coil
9MVM03301 - ECM Motor 1/3HP 120V - 24VHBQB, 24VHBXB-HW

9MVM03301 - ECM Motor 1/3HP 120V - 24VHBQB, 24VHBXB-HW
9MVM05002 - ECM Motor 1/2HP 120V - 36VHBQB, 36VHBXB-HW

9MVM05002 - ECM Motor 1/2HP 120V - 36VHBQB, 36VHBXB-HW
9MVM10003 - ECM Motor 1HP 120V - 48VHBQB, 48VHBXB-HW

9MVM10003 - ECM Motor 1HP 120V - 48VHBQB, 48VHBXB-HW
9MVM10004 - ECM Motor 1HP 120V - 60VHBQB, 60VHBXB-HW

9MVM10004 - ECM Motor 1HP 120V - 60VHBQB, 60VHBXB-HW
CB201 - Circuit Board UCQB - (H,M circuit board kit for 18HBX(Q)B-(HW) UC(HW)(QB) fan coil

CB201 - Circuit Board UCQB - (H,M circuit board kit for 18HBX(Q)B-(HW) UC(HW)(QB) fan coil
CB600 - Control Board for vertical units with ECM blower motor - AN410 - 18-60VHB(Q)(X)B(-HW), 10-20VMB(E)(-HW)

CB600 - Control Board for vertical units with ECM blower motor - AN410 - 18-60VHB(Q)(X)B(-HW), 10-20VMB(E)(-HW)

EW40030 - Wiring Kit - 16 Wire harness for 24VHBQB - from ECM Motor to Control Board (CB600)
M191 - Motor 1/2 HP 120/60/1 - 3 Motor for 16MB 12MB-3HW 36MB(Q)(X) 36HB(Q)(X) FWA50(AQ(HW) FWA60(AQ)(HW)

M191 - Motor 1/2 HP 120/60/1 - 3 Motor for 16MB 12MB-3HW 36MB(Q)(X) 36HB(Q)(X) FWA50(AQ(HW) FWA60(AQ)(HW)
M222 - Motor 1/5 HP 120/60/1 - 3 Motor for 8/10MB-HW 24/30MB(Q)(X) 24/30HB(Q)(X)

M222 - Motor 1/5 HP 120/60/1 - 3 Motor for 8/10MB-HW 24/30MB(Q)(X) 24/30HB(Q)(X)
M362 - Motor 1/5 HP 120/60/1 - 4 Motor for 8MB 18MB(Q)(X) 18HB(Q)(X) FWA30(AQ)(HW)

M362 - Motor 1/5 HP 120/60/1 - 4 Motor for 8MB 18MB(Q)(X) 18HB(Q)(X) FWA30(AQ)(HW)
M451 - Motor 3/4 HP 120/60/1 - 3 Motor for 20MB/16MB-4HW 48MB(Q)(X) 48HB(Q)(X)

M451 - Motor 3/4 HP 120/60/1 - 3 Motor for 20MB/16MB-4HW 48MB(Q)(X) 48HB(Q)(X)
M461 - Motor 1 HP 120/60/1 - 3 Spd motor for 20MB-4HW 60MB(Q)(X) 60HB(Q)(X)

M461 - Motor 1 HP 120/60/1 - 3 Spd motor for 20MB-4HW 60MB(Q)(X) 60HB(Q)(X)

TAG: THERMOSTAT AT8877-04 Multi-Custom 24V Fan Coil Thermostat c/w: 24V 7-wire, Backlight, AUTO-changeover, SIMPLE DISPLAY, selectable Programmable events, selectable 3-speed fan control, 1 min/24 hour valve exercise, selectable NO or NC valve operation.
USM318AP Evap Coil

USM318AP Evap Coil