OXBOX J4MXCA001AC6HCA Multi Position Cased Coils Cooling and Heat Pump Instruction Manual

OXBOX J4MXCA001AC6HCA Multi Position Cased Coils Cooling and Heat Pump

Product Information

• Outdoor Unit Capacity (Tons): 1.5, 2, 2.5, 3, 3.5, 4, 5
• Piston Size* (R410a): 52, 58, 063/065, 70, 75, 83, 90
• Piston Kit (R410a): MAYORIACHP0052B, MAYORIACHP0058B, MAYORIACHP0063B/065A, MAYORIACHP0070B, MAYORIACHP0075B, MAYORIACHP0083B, MAYORIACHP0090B
• Piston Size* (R22): 52, 58, 65, 72, 78, 88, 96
• Piston Kit (R22): MAYORIACHP0052B, MAYORIACHP0058B, MAYORIACHP0065A, MAYORIACHP0072B, MAYORIACHP0078B, MAYORIACHP0088B, MAYORIACHP0096B
• Outdoor Unit Model: J4AC3030A1, J4AC4030A1, J4HP4030A1
• Coil Model: J4MXCA001AC6HCA 0.058 factory installed, J4MXCB002AC6HCA 0.058 factory installed, J4MXCA003AC6HCA 0.070 factory installed, J4MXCB004AC6HCA 0.070 factory installed, J4MXCC005AC6HCA 0.070 factory installed, J4MXCB006AC6HCA 0.083 factory installed, J4MXCC009AC6HCA 0.090 factory installed, J4MXCB016AC6HCA 0.083 factory installed, J4MXCC017AC6HCA 0.083 factory installed, J4MXCD018AC6HCA 0.083 factory installed

Product Usage Instructions

To use the product, follow these steps:

1. Install the outdoor unit according to the provided model specifications (J4AC3030A1, J4AC4030A1, J4HP4030A1).
2. Choose the appropriate piston size based on the refrigerant type (R410a or R22).
3. For R410a refrigerant, select the corresponding piston kit (MAYORIACHP0052B, MAYORIACHP0058B, MAYORIACHP0063B/065A, MAYORIACHP0070B, MAYORIACHP0075B, MAYORIACHP0083B, MAYORIACHP0090B).
4. For R22 refrigerant, select the corresponding piston kit (MAYORIACHP0052B, MAYORIACHP0058B, MAYORIACHP0065A, MAYORIACHP0072B, MAYORIACHP0078B, MAYORIACHP0088B, MAYORIACHP0096B).
5. Install the coil using the specified model number and factory installed piston size.

For more information or assistance, please contact your local dealer (distributor).

RECOGNIZE THIS SYMBOLAS AN INDICATION OF IMPORTANT SAFETY INFORMATION

WARNING
These instructions are intended as an aid to qualified licensed service personnel for proper installation, adjust­ment and operation of this unit. Read these instructions thoroughly before attempting installation or operation. Failure to follow these instructions may result in improper installation, adjustment, service or maintenance and possibly resulting in fire, electrical shock, property damage, personal injury or death.

DO NOT DESTROY THIS MANUAL
Please read carefully and keep in a safe place for future reference by a serviceman.

SAFETY

When you see the symbols below on labels or in manual, be alert to the potential or immediate hazards of personal injury, property and/or product damage. It is the owner’s or installer’s responsibility to comply with all safety instructions and informa­tion accompanying these symbols.

• WARNING
  This is a safety alert symbol indicating a potential hazardous situation, which could result in personal injury, property and/or product damage or death.

• CAUTION
  This is a safety alert symbol indicating a potential hazardous situation, which could result in moderate personal injury, and/or property and product damage.

• WARNING
  Disconnect all power to the unit before starting any service and maintenance. Failure to do so could cause severe electrical shock resulting in personal injury or death.

• WARNING
  Installation or servicing of this unit can be hazardous due to parts, compo­nents and system pressure. Qualified and proper trained service personnel should perform installation and repair. Failure to do so could cause severe electrical shock resulting in personal injure or death.

GENERAL

The coil can be positioned for bottom return air in the upflow and horizontal right app­lications. It must be positioned for top return when in downflow and horizontal left app­lications. See figure 4. For furnace applications, the coil must be installed downstream (in the air outlet) of the furnace.

CODES & REGULATIONS
This product is designed and manufactured to comply with national codes. Installation in accordance with such codes and/or prevailing local codes/regulations is the responsibility of the installer. The manufacturer assumes no responsibility for equipment installed in violation of any codes or regulations.
The United States Environmental Protection Agency(EPA) has issued various regulations regarding the introduction and disposal of refrigerants. Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines. Should you have any questions please contact the local office of the EPA.

INSPECTION UPON UNIT ARRIVAL
As soon as unit is received, it should be inspected and noted for possible shipping damage during transportation. It is carrier’s responsibility to cover the cost of shipping damage. Manufacturer or distributor will not accept a claim from contractors for any transportation damage.

CLEARANCES
Following clearances should be provided during installation

• a. Maintenance and service access, including coil cleaning and coil assembly removal
• b. Refrigerant piping and connections
• c. Condensate drain line
  For ensure the proper installation, Select a solid and level site. Ensure enough space required for installation and maintenance.

INSTALLATION INSTRUCTIONS

PARTS

Contact your distributor for authorized replacement parts.

PRE-INSTALLATION INSTRUCTIONS

Carefully read all instructions for installation prior to installing product. Make sure each step or procedure is understood and any special considerations are taken into account before starting installation. Assemble all tools, hardware and supplies needed to complete the installation. Some items may need to be purchased locally. Make sure everything needed to install the product is on hand before starting.

INSTALLATION AND TRAP CONNECTION

1. See Fig.4 for coil installation and drain connection.
2. Installation steps for cased coil:
   A. Shut off or disconnect gas furnace’s power and remove gas pipe if necessary;
   B. Disconnect and remove a sufficient portion of the supply ductwork to provide clearance for the cased coil ;
   C. Ensure that the coil is leveled well and seal the gap between coil and furnace.See Figure 4. In case that coil and furnace sizes are not matched, use proper size of sheet metal or other material to fill the gap and seal the gap to prevent air leak ;
   D. Reconnect the ductwork to the coil case, and seal any leakage ;
   E. Reconnect power line on gas furnace, turn on the furnace to check any sign of leakage .

DRAIN APPLICATION

CONDENSATE DRAIN PIPING
Consult local codes for special requirements.
To provide extra protection from water damage, it is always recommended to install an additional drain pan, provided by installer under the entire unit with a separate drain line. Manufacturer will not be responsible for any damages due to the failure to follow these recommendations.

PLASTIC DRAIN PAN INSTALLATION

WARNING
Do not use the coil pan shipped with the unit on OIL furnaces or any appli­cation where the temperature of the drain pan may exceed 275°F. A field fabricated metal drain pan can also be used for these type of applications. Fallure to follow this warning may result in property damage and/or personal injury.

NOTE: Use Teflon tape on the drain line connections. Do not use pipe joint com­pound or PVC/CPVC cement on drain nipple.

• The coil drain pan has a primary and an optional secondary drain with 3/4″ NPT female connections; use either PVC or copper pipe and hand tighten to a torque of approximately 37 in-lbs. to prevent damage to the drain pan connection. An insertion depth between .355 to .485 inches (3-5 turns) should be expected at this torque setting.
• Use male 3/4″ NPT threaded fitting for outside connection and make sure the drain holes are not blocked.
• Insulation may be needed for drain line to prevent sweating.
• Drain pan has two drain connections on each side to provide flexibility of connection and drainage. Make sure pan has proper pitch and plugged if second connection is not used.
• If the secondary drain line is required, run the line separately from the primary drain and terminate it where it can be easily seen.
• NOTE: Water coming from this line means the coil primary drain is plugged and needs clearing.
• Install a trap in the drain line below the bottom of the drain pan. If using a copper drain line, solder a short piece of pipe to the connector before installing a drain fitting. DO NOT over torque the 3/4″ copper connector to the plastic drain connection. Use a wet rag or heatsink material on the short piece to protect plastic drain pan, complete the drain line installation (Fig.5 ). Use (Fig.6) as a template for typical drain pipe routing. This figure shows how to avoid interference with vent piping.

REFRIGERANT CONNECTIONS

• CAUTION
  Gently remove the sealing plug of vapor line, use one wrench to fix the valve base, loose the nut with another wrench,take out the flange pad and and sealing ring.
  The nitrogen pressure is about 10 PSIG.
  To prevent refrigerant leak, use proper tools to ensure clean, burr-free cut.

• CAUTION
  TXV bulb MUST be protected (wrapped with wet rag) or removed, while brazing the tubing. Overheating of the sensing bulb will affect the functional characteristics and performance of the comfort coil.
  Use brazing shield when brazing close to the cabinet surface and wet rag to protect rubber grommet.
  Brazing alloy should be at least 5% silver content.

PISTON/TXV INSTALLATION

Note: A piston does come pre-installed.The piston must be removed before installing a TXV.

Piston installation

1. Using a wrench to loosen the nut. Remove the nut and sealing flange.

2. Check the piston sizes for each outdoor/coil combination in Table 1 and choose the correct piston size for your combination.

3. lf a different size piston is needed for your system combination, remove the pre-installed piston.
   NOTE: Piston sleeve may come out with the piston. If so, check that inner O-ring is still in place. If not, use the small O-ring provided in the doc pack. Re-install piston sleeve with correct orientation.

4. Choose correct size piston from the doc pack and insert it with correct orientation.

5. Replace outer O-ring with the O-ring provided in the doc pack.

6. Attach the connection pipe with nut and tighten to 116th turn past hand-tighten.
   NOTE: MUST wrap the nut with a wet rag before brazing.

Optional TXV kit installation:
Reference TXV kit literature for installation instructions.

• This coil comes with a factory installed piston metering device. See Table 1 for factory installed piston size. Some system combinations will require a different sized piston to be field installed.

• Use the piston size recommended by the outdoor unit if available

• Reference Table 2 if the outdoor unit does not list a piston size

• The ship-with literature bag will contain additional R-410A pistons for most applications

• Contact your local parts center to order the appropriate piston if it is not included with the literature.

• A TV may be required to achieve minimum efficiency ratings or for long refrigerant line set applications. Reference AHRI for system combination ratings.

• Use Table 4 for TXV kit part numbers.

• Reference Table 5 to charge the system by superheat when using a piston.

• Reference the outdoor unit installation guide to change the system by subcooling when using a TXV.

• Table 1. Factory installed piston size for each coil model. Additional piston sizes are provided in the ship-with literature bag as necessary.

• means that this piston is pre-installed

WARNING
Failure to install the proper piston can lead to poor system performance and possible compressor damage.

Table 2. Use chart below when matching coil with outdoor unit. Additional piston sizes are provided in the ship-with literature bag as necessary.

Outdoor Unit Capacity (Tons)| Piston Size* (R410a)|

Piston Kit

| Piston Size* (R22)|

Piston Kit

---|---|---|---|---
1.5| 52| MAYORIACHP0052B| 52| MAYORIACHP0052B
2| 58| MAYORIACHP0058B| 58| MAYORIACHP0058B
2.5**| 063 / 065| MAYORIACHP0063B / 065A| 65| MAYORIACHP0065A
3| 70| MAYORIACHP0070B| 72| MAYORIACHP0072B
3.5| 75| MAYORIACHP0075B| 78| MAYORIACHP0078B
4| 83| MAYORIACHP0083B| 88| MAYORIACHP0088B
5| 90| MAYORIACHP0090B| 96| MAYORIACHP0096B

*Piston size needed for system combination may not be pre-installed. See Table 1 for pre-installed size.
**Necessary piston size varies for this tonnage. See Table 3.
Table 3. R410a piston sizes for 2.5T outdoor capacitv svstem.

Outdoor Unit Model

|

Coil Model

|

Piston Size (R410a)

---|---|---
J4AC3030A1|

J4MXCA001AC6HCA

0.058 factory installed

|

0.063

J4AC4030A1
J4AC3030A1|

J4MXCB002AC6HCA

0.058 factory installed

|

0.063

J4AC4030A1
J4AC4030A1|

J4MXCA003AC6HCA

0.070 factory installed

| 0.063
J4AC3030A1| 0.065
J4AC3030A1|

J4MXCB004AC6HCA

0.070 factory installed

|

0.063

J4AC4030A1

J4AC3030A1

| J4MXCC005AC6HCA

0.070 factory installed

|

0.063

J4AC3030A1

| J4MXCB006AC6HCA

0.083 factory installed

|

0.065

J4HP4030A1

| J4MXCC009AC6HCA

0.090 factory installed

|

0.065

J4HP4030A1

| J4MXCB016AC6HCA

0.083 factory installed

|

0.065

J4HP4030A1

| J4MXCC017AC6HCA

0.083 factory installed

|

0.065

J4HP4030A1

| J4MXCD018AC6HCA

0.083 factory installed

|

0.065

*NOTE: Since the manufacturer has a policy of continuous product and product data improvement, if the system combination you are looking for is not listed Table 3, check for the latest version of this document at www.oxboxhvac.com

Table 4. Optional TXV kit part numbers. Some combinations may require a TXV. See AHRI for system combination ratings

Outdoor Unit

Capacity (Tons)

|

R410a TXV Kit

|

R22 TXV Kit

---|---|---
1.5-3.0| 4AYTXVH3G2436A| 2AYTXVH3G2436A
3.5-4.0| 4AYTXVH3G4248A| 2AYTXVH3G4248A
5| 4AYTXVH3G6000A| 2AYTXVH3G6000A

CAUTION

An improperly charged system will likely cause loss in system performance and may damage the compressor.

Table 5. Piston Superheat Charging Chart

Superheat
115| 23| 16| 7| 5| 5| 5
110| 24| 17| 9| 5| 5| 5
105| 26| 19| 11| 5| 5| 5
100| 27| 21| 13| 7| 5| 5
95| 29| 23| 16| 9| 5| 5
90| 30| 25| 18| 12| 5| 5
85| 35| 26| 20| 14| 8| 5
80| 34| 28| 22| 17| 11| 5
75| 35| 30| 24| 19| 13| 6
70| 37| 32| 26| 21| 16| 10
65| 38| 34| 29| 24| 19| 13
60| 40| 36| 31| 27| 22| 17
55| 41| 37| 33| 29| 25| 21

Note:Chart is based on 400 CFM/Ton indoor airflow and 50% relative humidity.If indoor relative humidity is above 70% or below 20%.use indoor wet bulb temperature only.Airflow range is 375 to 425 CFM/Ton.

AIRFLOW PERFORMANCE [CM VS PRESSURE DROPI

Data based on wet coil with entering air at 80 degF DB / 67 degF WB without air filter.
MAXIMUM AIRFLOW SETTING,CFM
Note:Water blow-off could occur in certain installation positions if the airflow setting exceeds the maximum values listed.

TwentyThreeC, LLC 800 Beaty Street, Davidson NC. 28036 www.oxboxhvac.com
For more information contact your local dealer (distributor)

Since the manufacturer has a policy of continuous product and product data improvement, it reserves the right to change the design and specification without notice.

c . 2019 TwentyThreeC, LLC

References

• Salesforce B2B Commerce

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