OXBOX Wall-Mount Air Handlers

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Submittal

This document provides submittal information for the OXBOX JMM4 series Wall-Mount Air Handlers, designed for 1-1/2 to 3 Ton Cooling/Heat Pump applications. It includes detailed specifications, dimensional data, clearance requirements, and performance characteristics.

The units are available in the following models: JMM4A0A18S21SA, JMM4A0A24S21SA, JMM4A0B30S21SA, and JMM4A0B36S31SA.

Dimensional and Clearance Data

The document includes a diagram illustrating a wall-mount air handler unit. Key dimensions are labeled: H (Height), W (Width), W1 (Width), D (Depth), and D1 (Depth). The diagram shows the general shape and orientation of the unit.

Minimum Unit Clearance Table

	TO COMBUSTIBLE MATERIAL (REQUIRED)	SERVICE CLEARANCE (RECOMMENDED)
SIDES	0"	0"
FRONT	0"	24"
BACK	0"	0"
INLET DUCT	0"	0"
OUTLET DUCT	0"*

* 0" FOR THE FIRST 3 FT. OF OUTLET DUCT WHEN ELECTRIC HEATERS ARE INSTALLED

Product Dimensions (inch/mm)

Model	Height H	Width W	Width W1	Depth D	Depth D1	Flow Control	Gas Line Braze	Unit weight/ Shipping Weight [LBS(kg)]
JMM4A0A18S21SA	36-1/2" (928)	20-1/2" (522)	17-2/5" (442)	15" (381)	9-1/2" (242)	Orifice	3/4"	88/97 (40/44)
JMM4A0A24S21SA	36-1/2" (928)	20-1/2" (522)	17-2/5" (442)	15" (381)	9-1/2" (242)	Orifice	3/4"	88/97 (40/44)
JMM4A0B30S21SA	39-1/2" (1004)	22" (559)	18-3/4" (477)	19" (483)	9-1/2" (242)	Orifice	3/4"	106/119 (48/54)
JMM4A0B36S31SA	39-1/2" (1004)	22" (559)	18-3/4" (477)	19" (483)	9-1/2" (242)	Orifice	3/4"	106/119 (48/54)

Product Specifications

Model	JMM4A0A18S21SA	JMM4A0A24S21SA	JMM4A0B30S21SA	JMM4A0B36S31SA
RATED VOLTS/PH/HZ.	208-230/1/60	208-230/1/60	208-230/1/60	208-230/1/60
RATINGS	See O.D. Specifications	See O.D. Specifications	See O.D. Specifications	See O.D. Specifications
INDOOR COIL - Type	Plate Fin	Plate Fin	Plate Fin	Plate Fin
Rows - F.P.I.	5-11	5-11	5-14	5-14
Face Area (sq. ft.)	2.20	2.20	3.00	3.00
Tube Size (in.)	9/32	9/32	9/32	9/32
Refrigerant Control	Orifice	Orifice	Orifice	Orifice
Drain Conn Size (in.)	3/4 NPT	3/4 NPT	3/4 NPT	3/4 NPT
DUCT CONNECTIONS	See Outline Drawing	See Outline Drawing	See Outline Drawing	See Outline Drawing
INDOOR FAN - Type	Centrifugal	Centrifugal	Centrifugal	Centrifugal
Diameter-Width (In.)	10-5/6 X 6-1/7	10-5/6 X 6-1/7	10-3/5 X 9-10/7	10-3/5 X 9-10/7
No. Used	1	1	1	1
Drive - No Speeds	Direct - 3	Direct - 3	Direct - 3	Direct - 3
CFM vs. in. w.g.	See Fan Performance Table	See Fan Performance Table	See Fan Performance Table	See Fan Performance Table
No. Motors - H.P.	1 - 1/6	1 - 1/4	1 - 1/3	1 - 1/2
Motor Speed R.P.M.	1075	1075	1075	1075
Volts/Ph/Hz	208-230/1/60	208-230/1/60	208-230/1/60	208-230/1/60
F.L. Amps	0.8	1.0	1.28	1.8
FILTER
Filter Furnished?	No	No	No	No
Type Recommended	Throwaway	Throwaway	Throwaway	Throwaway
No.-Size-Thickness	1 - 16X 20 - 1 in.	1 - 16X 20 - 1 in.	1 - 20X 20 - 1 in.	1 - 20X 20 - 1 in.
REFRIGERANT	R-410A	R-410A	R-410A	R-410A
Ref. Line Connections	Brazed	Brazed	Brazed	Brazed
Coupling or Conn. Size -- in. Gas	3/4	3/4	3/4	3/4
Coupling or Conn. Size -- in. Liq.	3/8	3/8	3/8	3/8
DIMENSIONS	H x W x D	H x W x D	H x W x D	H x W x D
Crated (In.)	39-3/8×22-6/7×17-1/3	39-3/8×22-6/7×17-1/3	42-4/7×24-1/4×21-2/7	42-4/7×24-1/4×21-2/7
Uncrated	36-1/2×20-1/2×15	36-1/2×20-1/2×15	39-1/2×22×19	39-1/2×22×19
WEIGHT
Shipping (Lbs.)/ Net (Lbs.)	97/88	97/88	119/106	119/106

Performance and Electrical Data

Air Flow Performance (Standard CFM)

Model Number	Motor Speeds	EXTERNAL STATIC PRESSURE (INWC.)
Model Number	Motor Speeds	0	0.1	0.2	0.3	0.4	0.5	0.6	0.7	0.8
JMM4A0A18S21SA	Low CFM	603	562	525	485	443	393	-	-	-
	Watts	216	212	208	202	197	190	-	-	-
	Amps	1.1	1.1	1.1	1	1	1	-	-	-
JMM4A0A24S21SA	Low CFM	676	640	602	563	523	499	-	-	-
	Watts	238	232	226	222	217	214	-	-	-
	Amps	1.2	1.2	1.2	1.1	1.1	1.1	-	-	-
JMM4A0B30S21SA	Low CFM	992	952	912	873	828	782	728	656	627
	Watts	327	318	308	299	290	281	273	264	256
	Amps	1.7	1.6	1.6	1.5	1.5	1.4	1.4	1.4	1.3
JMM4A0B36S31SA	Low CFM	1149	1105	1056	1008	960	909	856	791	726
	Watts	392	380	368	356	344	332	321	309	297
	Amps	2	1.9	1.9	1.8	1.8	1.7	1.6	1.6	1.5

NOTES:

Airflow based upon dry coil at 230V with no electric heat, no filter.
Airflow is equivalent for front or bottom return configurations.
SCFM is nearly the same with cooling performance airflow, the gap is in the 1 to 2%.

Shaded boxes represent airflow outside the required 300-450 cfm/ton.

Electrical Data

JMM4A0A18S21SA - ELECTRICAL DATA

Heater Model No	No. of Circuits/ Phases	240 Volt				208 Volt
Heater Model No	No. of Circuits/ Phases	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection
No Heater		1.0		15	15	1.0		15	15
BAYHTRJ505BRKA*	1/1	5 17100	20.8	27.1	30	3.8 12800	18.0	23.6	25
BAYHTRJ508BRKA*	1/1	7.5 25600	31.2	40.1	45	5.6 19200	27.1	34.9	40
BAYHTRJ510BRKA*	1/1	10 34100	41.7	53.1	60	7.5 25600	36.1	46.2	50

JMM4A0A24S21SA - ELECTRICAL DATA

Heater Model No	No. of Circuits/ Phases	240 Volt				208 Volt
Heater Model No	No. of Circuits/ Phases	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection
No Heater		1.3		15	15	1.3		15	15
BAYHTRJ505BRKA*	1/1	5 17100	20.8	27.3	30	3.8 12800	18.0	23.9	25
BAYHTRJ508BRKA*	1/1	7.5 25600	31.2	40.4	45	5.6 19200	27.1	35.2	40
BAYHTRJ510BRKA*	1/1	10 34100	41.7	53.4	60	7.5 25600	36.1	46.4	50

JMM4A0B30S21SA - ELECTRICAL DATA

Heater Model No	No. of Circuits/ Phases	240 Volt				208 Volt
Heater Model No	No. of Circuits/ Phases	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection
No Heater		1.6		15	15	1.6		15	15
BAYHTRJ505BRKA*	1/1	5 17100	20.8	27.7	30	3.8 12800	18.0	24.2	25
BAYHTRJ508BRKA*	1/1	7.5 25600	31.2	40.7	45	5.6 19200	27.1	35.5	40
BAYHTRJ510BRKA*	1/1	10 34100	41.7	53.7	60	7.5 25600	36.1	46.8	50

JMM4A0B36S31SA - ELECTRICAL DATA

Heater Model No	No. of Circuits/ Phases	240 Volt				208 Volt
Heater Model No	No. of Circuits/ Phases	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection	Capacity kW BTUH	Heater Amps per Circuit	Minimum Circuit Ampacity	Maximum Overload Protection
No Heater		2.3		15	15	2.3		15	15
BAYHTRJ505BRKA*	1/1	5 17100	20.8	28.3	30	3.8 12800	18.0	24.9	25
BAYHTRJ508BRKA*	1/1	7.5 25600	31.2	41.4	45	5.6 19200	27.1	36.2	40
BAYHTRJ510BRKA*	1/1	10 34100	41.7	54.4	60	7.5 25600	36.1	47.4	50

Mechanical Specifications

Standard Features

Front or bottom return air
Painted finish on galvanized steel
Sturdy polycarbonate drain pans
The JMM4 wall mount air handler has a factory installed drain pan and is shipped for upflow applications only.
208/230 - VAC operation
Multi-speed direct drive blower
PSC motor
Stud or wall mounting tabs
Fully insulated cabinet
3/4" NPT primary and secondary drains
All - aluminum tubes & fins

Optional Accessories

5, 7.5, and 10 kW single phase electric heaters. Circuit breakers are standard on all single phase 5, 7.5, and 10 kW heaters.
R-410 TXV kit - 4AYTXVH3G2436
R-22 TXV conversion kit - 2AYTXVH3G2436
Front louver panel 20.5" width - BAYFRTLOUPNL20 (1-Pack)
Front louver panel 22" width - BAYFRTLOUPNL22 (1-Pack)
Return air / service wall panel - BAYTMMWALLPNL1 (20-Pack)
Return air / service wall panel - BAYTMMWALLPNLS (1-Pack)

Certifications: ETL Listed, AHRI Certified (Unitary Small AC, Unitary Small HP).

Note: The Manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

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