MAINLINE MLP18AZ Heat Pumps User Manual

June 13, 2024
Mainline

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MAINLINE MLP18AZ Heat Pumps

MAINLINE-MLP18AZ-Heat-Pumps-product

Product Information

Cooling Efficiencies Up to 20.0 SEER2/12.5 EER2
Heating Efficiency 8.5 HSPF2
Nominal Sizes 2 to 5 Ton [7.0 to 17.6 kW]
Cooling Capacities 22.8 to 55.0 kBTU [6.7 to 16.1 kW]

Product Usage Instructions

To achieve optimal performance with the iM Heat Pumps MLP18AZ, it is important to follow these instructions:

  1. Make sure to properly size and install the equipment. This is critical for achieving optimal performance.
  2. Match the split system air conditioner or heat pump with appropriate coil components to meet Energy Star requirements. Consult your contractor for details or visit www.energystar.gov.

For detailed information about the product, including features, benefits, model number identification, general data, electrical data, accessories, and weighted sound power levels, refer to the user manual provided by HVACmainline.com.

Features and Benefits

  • EcoNet® Enabled: Automatic system configuration and optimization
  • Diagnostics & Bluetooth®1 Connectivity: With the BluArch™ Contractor & EcoNet® Apps, built-in technology makes advanced set-up, monitoring, troubleshooting, and repairing the product easier than ever before
  • Variable Speed Scroll Compressor & Inverter Drive:
    • Features variable speed operation from 40 to 100% capacity with the EcoNet® Smart Thermostat
    • Offers overdrive capability up to 115% to maintain performance in extreme conditions
    • Provides precise temperature control, advanced humidity control and greater efficiency
  • Brushless DC Condenser Motors (BLDC): Enhances reliability and allows for easier serviceability
  • Swept Wing Fan Technology: Features quieter operation and improved unit acoustics

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks is under license. Other trademarks and trade names are those of their respective owners.

Model Number Identification

Heat Pumps

MAINLINE-MLP18AZ-Heat-Pumps-fig-7

[ ] Designates Metric Conversions

AVAILABLE MODELS

AVAILABLE MODELS DESCRIPTION
MLP18AZ24AJVCA 2 ton EcoNet® Enabled Inverter Driven Variable Speed iM Heat

Pump – 208/230/1/60
MLP18AZ36AJVCA| 3 ton EcoNet® Enabled Inverter Driven Variable Speed iM Heat Pump – 208/230/1/60
MLP18AZ48AJVCA| 4 ton EcoNet® Enabled Inverter Driven Variable Speed iM Heat Pump – 208/230/1/60
MLP18AZ60AJVCA| 5 ton EcoNet® Enabled Inverter Driven Variable Speed iM Heat Pump – 208/230/1/60

STANDARD EQUIPMENT

STANDARD EQUIPMENT

R-410A Refrigerant
EcoNet® Enabled
Variable Speed Compressor
Compressor Sound Blanket
Variable speed outdoor fan motor
Swept wing fan blade
Field Installed Filter Drier
Front Seating Service Valves
Internal Pressure Relief Valve
Internal Thermal Overload
Low Ambient capability
3–4–5 Expanded Valve Space
Composite Basepan
1″ Screw Control Box Access
Quick release louver panel design
No fasteners to remove along bottom
Optimized Venturi Airflow
Single row condenser coil
Powder coated paint
Rust resistant screws
QR code
External gauge ports
Service trays

General Data/Electrical Data

General Data

General Data

GENERAL DATA
MODEL NO.| MLP18AZ24AJVCA| MLP18AZ36AJVCA| MLP18AZ48AJVCA| MLP18AZ60AJVCA
Nominal Tonnage| 2.0| 3.0| 4.0| 5.0
Valve Connections|
Liquid Line O.D. – in.| 3/8| 3/8| 3/8| 3/8
Suction Line O.D. – in.| 3/4| 3/4| 7/8| 7/8
Refrigerant (R410A) furnished oz.¹| 210| 212| 222| 252
Compressor Type| Scroll
Outdoor Coil|
Net face area – Outer Coil| 28.3| 32.5| 32.5| 32.5
Net face area – Inner Coil| —| —| —| —
Tube diameter – in.| 0.375| 0.375| 0.375| 0.375
Number of rows| 1| 1| 1| 1
Fins per inch| 20| 20| 20| 20
Outdoor Fan|
Diameter – in.| 26| 24| 24| 26
Number of blades| 3| 3| 3| 3
Motor hp| 1/2| 1/2| 1/2| 1/2
Shipping weight lbs.| 282| 306| 306| 309
Operating weight lbs.| 278| 298| 298| 301

Electrical Data

Electrical Data

Line Voltage Data (Volts-Phase-Hz)| 208/230-1-60| 208/230-1-60| 208/230-1-60| 208/230-1-60
Maximum overcurrent protection (amps)²| 30| 50| 60| 60
Minimum circuit ampacity³| 22| 32| 37| 42
Compressor|
Rated load amps| 15.4| 24| 28.1| 31.7
Locked rotor amps| 35| 50| 50| 50

  1. Refrigerant charge sufficient for 15 ft. length of refrigerant lines. For longer line set requirements see the installation instructions for information about set length and additional refrigerant charge required.
  2. HACR type circuit breaker of fuse.
  3. Refer to National Electrical Code manual to determine wire, fuse, and disconnect size requirements.

Accessories/Weighted Sound Power

Accessories

MODEL NO. MLP2024 MLP2036 MLP2048 MLP2060
EcoNet® Smart Thermostat CETST800SYS CETST800SYS CETST800SYS CETST800SYS
Heat Pump Riser 6 in. 686020 686020 686020 686020
Supply/Return Sensor RXHT-A02 RXHT-A02 RXHT-A02 RXHT-A02

Weighted Sound Power Level (dBA)

MLP18AZ SOUND POWER LEVEL


MODEL

| SOUND POWER LEVEL [DB(A)] LOW SPEED/ HIGH SPEED| FULL OCTAVE LINEAR SOUND POWER LEVEL DB – CENTER FREQUENCY – HZ| SOUND POWER LEVEL [DB(A)] WITH SOUND BLANKET
125| 250| 500| 1000| 2000| 4000| 6300| 8000
MLP18AZ24AJVCA| 59| 34.8| 39.7| 50.8| 48.4| 42.5| 40.2| 34.6| 34.5| ****



Sound Blankets – Standard

69| 45.0| 50.6| 59.5| 57.9| 56.6| 49.5| 45.7| 44.8
MLP18AZ36AJVCA| 60| 33.6| 38.3| 57.6| 48.2| 43.6| 39.7| 43.0| 39.3
70| 44.8| 51.1| 60.8| 60.1| 56.2| 50.3| 49.9| 48.3
MLP18AZ48AJVCA| 59| 34.0| 38.9| 52.3| 48.0| 43.5| 39.8| 42.2| 37.3
73| 48.5| 54.4| 65.4| 63.1| 58.0| 55.0| 53.3| 51.6
MLP18AZ60AJVCA| 58| 36.0| 39.3| 51.4| 46.2| 43.8| 43.0| 41.3| 40.2
73| 49.8| 54.0| 68.0| 59.2| 55.9| 53.7| 50.7| 49.3

NOTE: Tested in accordance with AHRI Standard 270-08 (not listed in AHRI)

Unit Dimensions

MAINLINE-MLP18AZ-Heat-Pumps-fig-2


MODEL NO.

| OPERATING| SHIPPING
---|---|---
H (Height)| L (Length)| W (Width)| H (Height)| L (Length)| W (Width)
INCHES| mm| INCHES| mm| INCHES| mm| INCHES| mm| INCHES| mm| INCHES| mm
MLP18AZ24AJVCA| 45.17| 1147| 36.13| 918| 36.13| 918| 48.18| 1224| 39.37| 1000| 39.64| 1007
MLP18AZ36AJVCA| 51.17| 1300| 36.13| 918| 36.13| 918| 53.56| 1360| 39.37| 1000| 39.64| 1007
MLP18AZ48AJVCA| 51.17| 1300| 36.13| 918| 36.13| 918| 53.56| 1360| 39.37| 1000| 39.64| 1007
MLP18AZ60AJVCA| 51.17| 1300| 36.13| 918| 36.13| 918| 53.56| 1360| 39.37| 1000| 39.64| 1007
[ ] Designates Metric Conversions

CLEARANCES

MAINLINE-MLP18AZ-Heat-Pumps-fig-3

NOTE: NUMBERS IN () = mm

IMPORTANT: When installing multiple units in an alcove, roof well or partially enclosed area, ensure there is adequate ventillation to prevent re- circulation of discharge air.

Control Wiring

Control Wiring

MAINLINE-MLP18AZ-Heat-Pumps-fig-4

Application Guidelines

  1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01-in. wc.
  2. Minimum outdoor operation air temperature for cooling mode without low-ambient operation accessory is 55°F (12.8°C).
  3. Maximum outdoor operating air temperature is 125°F (51.7°C).
  4. For reliable operation, unit should be level in all horizontal planes.
  5. Use only copper wire for electric connections at unit. Aluminum and clad aluminum are not acceptable for the type of connector provided.
  6. Do not apply capillary tube indoor coils to these units.
  7. Factory-supplied filter drier must be installed.

Refrigerant Line Size Information

Refrigerant Line Size Information

18 SEER2 VARIABLE SPEED HEAT PUMPS


UNIT SIZE

| ****

ALLOWABLE LIQUID LINE SIZE

| ****

ALLOWABLE VAPOR LINE SIZE

| OUTDOOR UNIT ABOVE OR BELOW INDOOR UNIT EQUIVALENT LENGTH (FEET)
< 25| 26- 50| 51- 75| 76- 100| 101- 125| 126- 150
MAXIMUM VERTICAL SEPARATION/CAPACITY MULTIPLIER



2.0 TON

*SEE NOTE 3

| 1/4″| 5/8″| 25/1.00| 50/0.99| 33/0.98| 60/0.97| NR| NR
5/16″| 5/8″| 25/1.00| 50/0.99| 50/0.98| 50/0.97| 50/0.96| 50/0.95
3/8″| 5/8″| 25/1.00| 50/0.99| 50/0.98| 50/0.97| 50/0.96| 50/0.95
1/4″| 3/4″| 25/1.00| 50/1.00| 33/0.99| 60/0.99| NR| NR
5/16″| 3/4″
| 25/1.00| 50/1.00| 50/0.99| 50/0.99| 50/0.99| 50/0.98
3/8″| 3/4″*| 25/1.00| 50/1.00| 50/0.99| 50/0.99| 50/0.99| 50/0.98



3 TON

| 5/16″| 5/8″| 25/0.99| 50/0.97| 50/0.95| 50/0.93| 36/0.91| NR
3/8″| 5/8″| 25/0.99| 50/0.97| 50/0.95| 50/0.93| 50/0.91| NR
5/16″| 3/4″| 25/1.00| 50/0.99| 50/0.99| 50/0.98| 36/0.97| 20/0.96
3/8″| 3/4″| 25/1.00| 50/0.99| 50/0.99| 50/0.98| 50/0.97| 50/0.96
1/2″| 3/4″| 25/1.00| 50/0.99| 50/0.99| 50/0.98| 50/0.97| 50/0.96



4 TON

| 3/8″| 3/4″| 25/0.99| 50/0.98| 50/0.96| 50/0.95| 50/0.93| 50/0.92
1/2″| 3/4″| 25/0.99| 50/0.98| 50/0.96| 50/0.95| 50/0.93| 50/0.92
3/8″| 7/8″| 25/1.00| 50/0.99| 50/0.99| 50/0.98| 50/0.98| 50/0.97
1/2″| 7/8″| 25/1.00| 50/0.99| 50/0.99| 50/0.98| 50/0.98| 50/0.97




5 TON

| 3/8″| 3/4″| 25/0.98| 50/0.97| 50/0.95| 50/0.93| 46/0.91| NR
1/2″| 3/4″| 25/0.98| 50/0.97| 50/0.95| 50/0.93| 50/0.91| NR
3/8″| 7/8″| 25/0.99| 50/0.99| 50/0.98| 50/0.97| 50/0.96| 38/0.95
1/2″| 7/8″| 25/0.99| 50/0.99| 50/0.98| 50/0.97| 50/0.96| 50/0.95
3/8″| 1-1/8″| 25/1.00| 50/1.00| 50/1.00| 50/0.99| 50/0.99| 38/0.99
1/2″| 1-1/8″
| 25/1.00| 50/1.00| 50/1.00| 50/0.99| 50/0.99| 50/0.99


UNIT SIZE

| ALLOWABLE LIQUID LINE SIZE| ALLOWABLE VAPOR LINE SIZE| OUTDOOR UNIT ABOVE OR BELOW INDOOR UNIT EQUIVALENT LENGTH (METERS)
---|---|---|---
< **8| 9- 15| 16- 23| 24- 30| 31- 38| 39- 46
MAXIMUM VERTICAL SEPARATION/CAPACITY MULTIPLIER**



7.0 kW [2.0 TON]

*SEE NOTE 3

| 6.35 [1/4]| 15.88 [5/8]| 8/1.00| 15/0.99| 10/0.98| 20/0.97| NR| NR
7.94 [5/16]| 15.88 [5/8]| 8/1.00| 15/0.99| 15/0.98| 15/0.97| 15/0.96| 15/0.95
9.53 [3/8]| 15.88 [5/8]| 8/1.00| 15/0.99| 15/0.98| 15/0.97| 15/0.96| 15/0.95
6.35 [1/4]| 19.05 [3/4]| 8/1.00| 15/0.99| 10/0.99| 20/0.99| NR| NR
7.94 [5/16]| 19.05 [3/4]| 8/1.00| 15/0.99| 15/0.99| 15/0.99| 15/0.99| 15/0.98
9.53 [3/8]| 19.05 [3/4]| 8/1.00| 15/0.99| 15/0.99| 15/0.99| 15/0.99| 15/0.98



10.6 kW [3 TON]

| 7.94 [5/16]| 15.88 [5/8]| 8/0.99| 15/0.97| 15/0.95| 15/0.93| 11/0.91| NR
9.53 [3/8]| 15.88 [5/8]| 8/0.99| 15/0.97| 15/0.95| 15/0.93| 15/0.91| NR
7.94 [5/16]| 19.05 [3/4]| 8/1.00| 15/0.99| 15/0.99| 15/0.98| 11/0.97| 6/0.96
9.53 [3/8]| 19.05 [3/4]| 8/1.00| 15/0.99| 15/0.99| 15/0.98| 15/0.97| 15/0.96
12.70 [1/2]| 19.05 [3/4]| 8/1.00| 15/0.99| 15/0.99| 15/0.98| 15/0.97| 15/0.96


14.1 kW [4 TON]

| 9.53 [3/8]| 19.05 [3/4]| 8/0.99| 15/0.98| 15/0.96| 15/0.95| 15/0.93| 15/0.92
12.70 [1/2]| 19.05 [3/4]| 8/0.99| 15/0.98| 15/0.96| 15/0.95| 15/0.93| 15/0.92
9.53 [3/8]| 22.23 [7/8]| 8/1.00| 15/0.99| 15/0.99| 15/0.98| 15/0.98| 15/0.97
12.70 [1/2]| 22.23 [7/8]| 8/1.00| 15/0.99| 15/0.99| 15/0.98| 15/0.98| 15/0.97




17.6 kW [5 TON]

| 9.53 [3/8]| 19.05 [3/4]| 8/0.98| 15/0.97| 15/0.95| 15/0.93| 14/0.91| NR
12.70 [1/2]| 19.05 [3/4]| 8/0.98| 15/0.97| 15/0.95| 15/0.93| 15/0.91| NR
9.53 [3/8]| 22.23 [7/8]| 8/0.99| 15/0.99| 15/0.98| 15/0.97| 15/0.96| 12/0.95
12.70 [1/2]| 22.23 [7/8]| 8/0.99| 15/0.99| 15/0.98| 15/0.97| 15/0.96| 15/0.95
9.53 [3/8]| 28.58 [1-1/8]| 8/1.00| 15/0.99| 15/0.99| 15/0.99| 15/0.99| 12/0.99
12.70 [1/2]| 28.58 [1-1/8]
| 8/1.00| 15/0.99| 15/0.99| 15/0.99| 15/0.99| 15/0.99

NOTES

  1. Do not exceed 46 meters linear line length.
  2. Do not exceed 15 meters vertical separation between indoor and outdoor units.
  3. *19.05mm [3/4″] vapor line should only be used for 2 ton systems if outdoor unit is below or at same level as indoor unit to assure proper oil return.
  4. **28.58mm [1-1/8″] vapor line should only be used for 5 ton systems if outdoor unit is below or at same level as indoor unit to assure proper oil return.
  5. Always use the smallest liquid line allowable to minimize refrigerant charge.
  6. Applications shaded in light gray indicate capacity multipliers between 0.90 and 0.96 which are not recommended, but are allowed.
  7. Applications shaded in dark gray are not recommended due to excessive liquid or suction pressure drop.

Performance Data

Performance Data @ AHRI Standard Conditions – Cooling

DESIGNATED TESTED COMBINATION (DTC)


OUTDOOR UNIT

| ****

AIR HANDLER

| TOTAL CAPACITY BTU/H [kW]| NET SENSIBLE BTU/H [kW]| NET LATENT BTU/H [kW]| ****

SEER2

| ****

EER2

| ****

INDOOR CFM [L/s]

| 47 DEGREE HEATING CAPACITY BTU/H [kW]| 47

DEGREE COP

| 17 DEGREE HEATING CAPACITY BTU/H [kW]| 17

DEGREE COP

| REGION IV HSPF2
MLP18AZ24AJVC| MLMVZ2421HEACA| 22800 [6.7]| 17500 [5.1]| 5300 [1.6]| 18.0| 12.5| 785 [370.5]| 22800 [6.7]| 3.00| 23000 [6.7]| 2.00| 8.5
MLP18AZ36AJVC| MLMVZ6021SEACA| 34200 [10.0]| 26200 [7.7]| 8000 [2.3]| 18.0| 12.5| 1225 [578.1]| 32000 [9.4]| 3.00| 37400 [11.0]| 2.00| 8.5
MLP18AZ48AJVC| MLMVZ6021SEACA| 45800 [13.4]| 34500 [10.1]| 10500 [3.1]| 18.0| 12.0| 1590 [750.4]| 40000 [11.7]| 2.50| 41000 [12.0]| 1.50| 8.5
MLP18AZ60AJVC| MLMVZ6021SEACA| 53000 [15.5]| 40600 [11.9]| 12400 [3.6]| 18.0| 10.5| 1685 [795.2]| 48500 [14.2]| 2.50| 47000 [13.8]| 1.50| 8.5

NOTE: This data includes DTC (Designated Test Combination) ratings and is for reference purposes only. A full listing of official ratings and system match-ups, along with downloadable certificates, can be accessed from the AHRI website: www.ahridirectory.org.

[ ] Designates Metric Conversions

Integrated Controls

EcoNet® is smart, technology that allows Heating and Cooling, products to communicate with each other on one integrated network.

THE ECONET® SMART THERMOSTAT

  • BUILT-IN WIFI
  • 4.3″ LCD TOUCH SCREEN
  • LOCAL WEATHER – Current conditions plus 6-day forecast
  • 5 OPERATING MODES – Heat, Cool, Auto, Emergency Heat and Fan Only
  • 7-DAY PROGRAMMABLE SCHEDULE – Offers comfort without thought
  • ONE-TOUCH AWAY – Quickly switch to your energy-saving away preferences
  • VACATION SCHEDULING – Allows you to save while you’re away and come home to comfort
  • STANDBY SCREEN – Displays indoor temperature and current weather

OPERATIONAL FEATURES

  • AUTOMATIC CHANGEOVER – Transitions between heating and cooling automatically to keep the house comfortable
  • INTEGRATED WATER CONTROL – Enables easy water heater management
  • SMOOTH ARRIVAL – Prompts the system to start ahead of schedule to ensure the home is at the desired temperature at the scheduled time
  • HUMIDITY CONTROL – Supports humidifier accessories or over-cool based dehumidification
  • DETAILED OPERATING STATUS – View pertinent equipment status information and run times
  • CONTINUOUS FAN – Offers 5 speeds (Low, Medium Low, Medium, Medium High, High)
  • SHORT-CYCLE PROTECTION – Avoids damage to equipment from short run cycles

MONITORING & REMOTE CONTROL FEATURES

  • ACTIVE MONITORING – Alerts to problems that need immediate attention
  • REMOTE CONTROL – Allows adjusting of comfort and settings from anywhere using a mobile device
  • SERVICE ALERTS – Sends routine maintenance reminders
  • AIR FILTER MONITORING – Detects when it’s time to replace the air filter
  • ALARM HISTORY – Displays time-stamped alarm codes with clear descriptions

GENERAL TERMS OF LIMITED WARRANTY

  • Mainline® will furnish a replacement for any part of this product which fails in normal use and service within the applicable period stated, in accordance with the terms of the limited warranty.
  • For complete details of the Limited and Conditional Warranties, including applicable terms and conditions, contact your local contractor or the Manufacturer for a copy of the product warranty certificate.

Conditional Unit Replacement

  • (Registration Required) ……………………….. Ten (10) Years
  • Parts ……………………………………………….Ten (10) Years

Before proceeding with installation, refer to installation instructions packaged with each model, as well as complying with all Federal, State, Provincial, and Local codes, regulations, and practices.
“In keeping with its policy of continuous progress and product improvement, Mainline reserves the right to make changes without notice.”

More Information

www.MainlineCollection.com

Manufactured for Mainline®: HVACmainline.com

MAINLINE-MLP18AZ-Heat-Pumps-fig-1

A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with Department of Energy test procedures.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks is under license.
Other trademarks and trade names are those of their respective owners.
*Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps must be matched with appropriate coil components to meet Energy Star. Ask your Contractor for details or visit www.energystar.gov.

References

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