MAINLINE MLP15AZ iM Heat Pumps User Manual

MAINLINE MLP15AZ iM Heat Pumps

Product Information

The iM Heat Pumps MLP15AZ are high-efficiency heat pumps manufactured for HVACmainline.com. They have cooling efficiencies up to 16 SEER2 / 11.7 EER2 and heating efficiencies up to 8.1 HSPF. The nominal sizes range from 1.5 to 5 tons [5.3 to 17.6 kW], with cooling and heating capacities ranging from 13.36 kBTU to 45.6 kBTU. The heat pumps use R-410A refrigerant and are available in various models with different capacities and features.

Product Usage Instructions

1. Proper sizing and installation of the heat pump are crucial for optimal performance. Make sure to match the heat pump with appropriate coil components to meet Energy Star requirements.
2. Before installation, consult your contractor for specific details or visit www.energystar.gov for more information.
3. Select the appropriate model based on your cooling and heating requirements. Refer to the table of contents for the model number identification.
4. Refer to the general data/electrical data section for detailed specifications such as nominal tonnage, valve connections, motor hp, CFM, RPM, watts, and electrical data.
5. If needed, consider using accessories like a compressor crankcase heater, low ambient control, compressor sound cover, compressor hard start kit, low-pressure control, and high-pressure control. Consult the accessories section for model-specific information.
6. Follow the installation instructions provided by your contractor or refer to the user manual for proper installation procedures.
7. Ensure the heat pump is connected to the appropriate line voltage indicated in the electrical data section.
8. Regularly maintain and clean the heat pump according to the maintenance guidelines provided in the user manual.
9. If you experience any issues or have questions regarding the product, contact your contractor or refer to the customer support information provided by HVACmainline.com.

MLP15AZ

• Cooling Efficiencies up to  16 SEER2 / 11.7 EER2
• Heating Efficiencies up to: 8.1 HSPF
• Nominal Sizes: 1.5 to 5 Tons [5.3 to 17.6 kW]
• Cooling & Heating Capacities: 13.36 kBTU to 45.6 kBTU
  • 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.

Features and Benefits

• Two-Stage Scroll Compressor: Features two speeds (high and low) of cooling and heating, providing more precise temperature control, lower humidity and greater efficiency when compared to single stage compressors
• 7 mm Condenser Copper Coil1: Requires less refrigerant allowing for a smaller and lighter footprint while enhancing reliability
• Inverted Reversing Valve: Allows for faster heat transfer with gravity-assist shifting and reduced joint stress for increased reliability
• Expanded Valve Space: 3 in. – 4 in. – 5 in. service valve space — provides a minimum working area of 27 square inches for easier access
• Triple Service Access: 15 in. wide, industry-leading access makes repairs easier and faster

Heat Pumps

ML| P| 15| A| Z| 18| A| J| 2| N| A
---|---|---|---|---|---|---|---|---|---|---
Brand| Product Category| SEER2| Region| Refrigerant| Capacity| Major Series| Voltage| Type| Controls| Minor Series

ML – Mainline P – Heat Pump 15 – 15.2 SEER2 A – All Regions Z – R-410A 18 – 18,000 [5.28 kW] A – 1st Design J – 208/230/1/60 2 – 2+ Stage N – Non-Comm. A – 1st Design

• 24 – 24,000 [7.03 kW]
• 30 – 30,000 [8.79 kW]
• 36 – 36,000 [10.55 kW]
• 42 – 42,000 [12.31 kW]
• 48 – 48,000 [14.07 kW]
• 60 – 60,000 [17.58 kW]

[ ] Designates Metric Conversions

STANDARD EQUIPMENT

R-410A Refrigerant
Scroll Compressor
Field Installed Filter Drier
Front Seating Service Valves
Internal Pressure Relief Valve
Internal Thermal Overload
Long Line capability
Low Ambient capability with Kit
3-4-5 Expanded Valve Space
Composite Basepan
2 Screw Control Box Access
15″ Access to Internal Components
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

MODEL NO.| (-)P15AZ 18AJ2NA| (-)P15AZ 24AJ2NA| (-)P15AZ 30AJ2NA| (-)P15AZ 36AJ2NA| (-)P15AZ 42AJ2NA| (-)P15AZ 48AJ2NA| (-)P15AZ 60AJ2NA
Nominal Tonnage| | | | | | |
Valve Connections|
Liquid Line O.D. – in.| 0.375| 0.375| 0.375| 0.375| 0.375| 0.375| 0.375
Suction Line O.D. – in.| 0.75| 0.75| 0.75| 0.75| 0.875| 0.875| 0.875
Refrigerant (R410A) furnished oz.¹| 118| 118| 120| 127| 143| 146| 220
Compressor Type| 2-stage Scroll
Outdoor Coil|
Net face area – Outer Coil| 10.9| 10.9| 19.5| 21.5| 21.5| 21.5| 32.5
Net face area – Inner Coil| 10.5| 10.5| | | | |
Tube diameter – in.| 0.276| 0.276| 0.276| 0.276| 0.276| 0.276| 0.375
Number of rows| 2| 2| 1| 1| 1| 1| 1
Fins per inch| 22| 22| 22| 22| 22| 22| 20
Outdoor Fan|
Diameter – in.| 20| 20| 24| 24| 24| 24| 26
Number of blades| 2| 2| 3| 3| 3| 3| 3
Motor hp| 1/6| 1/6| 1/5| 1/5| 1/5| 1/5| 1/5
CFM| 2582| 2582| 4077| 4206| 4206| 4206| 5106
RPM| 1075| 1075| 850| 850| 850| 850| 850
watts| 145| 145| 222| 246| 246| 246| 294
Shipping weight – lbs.| 157| 157| 209| 221| 247| 247| 298
Operating weight – lbs.| 150| 150| 202| 214| 240| 240| 291
Electrical Data

Line Voltage Data (Volts-Phase-Hz)| 208/230-1-60| 208/230-1-60| 208/230-1-60| 208/230-1-60| 208/230-1-60| 208/230-1-60| 208/230-1-60
Maximum overcurrent protection (amps)²| 15| 25| 30| 30| 45| 45| 50
Minimum circuit ampacity³| 11| 15| 18| 20| 26| 28| 31
Compressor|
Rated load amps| 8| 11| 14| 15| 20| 21| 24
Locked rotor amps| 56| 61| 87| 102| 151| 0| 151
Condenser Fan Motor|
Full load amps| 0.75| 0.75| 1.0| 1.0| 1.0| 1.0| 1.0
Locked rotor amps| 1.5| 1.5| 2.56| 2.56| 2.56| 2.56| 2.56

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 the National Electrical Code manual to determine wire, fuse, and disconnect size requirements.

Accessories

MODEL NO.| (- )P15AZ18| (- )P15AZ24| (- )P15AZ30| (- )P15AZ36| (- )P15AZ42| (- )P15AZ48| (- )P15AZ60
---|---|---|---|---|---|---|---
Compressor crankcase heater*| 44-17402-44| 44-17402-44| 44-17402-44| 44-17402-44| 44-17402-45| 44-17402-45| Factory Standard
Low ambient control| RXAD-A08| RXAD-A08| RXAD-A08| RXAD-A08| RXAD-A08| RXAD-A08| RXAD-A08
Compressor sound cover| 68-23427-26| 68-23427-26| 68-23427-26| 68-23427-26| 68-23427-25| 68-23427-25| 68-23427-25
Compressor hard start kit| SK-A1| SK-A1| SK-A1| SK-A1| SK-A1| SK-A1| SK-A1
Low pressure control| Factory Standard| Factory Standard| Factory Standard| Factory Standard| Factory Standard| Factory Standard| Factory Standard
High pressure control| Factory Standard| Factory Standard| Factory Standard| Factory Standard| Factory Standard| Factory Standard| Factory Standard
Liquid Line Solenoid (24 VAC, 50/60 Hz)| Solenoid Valve| 200RD2T3TVLC| 200RD2T3TVLC| 200RD2T3TVLC| 200RD2T3TVLC| 200RD2T3TVLC| 200RD3T3TVLC| 200RD3T3TVLC
Solenoid Coil| 61-AMG24V| 61-AMG24V| 61-AMG24V| 61-AMG24V| 61-AMG24V| 61-AMG24V| 61-AMG24V
Liquid Line Solenoid (120/240 VAC, 50/60 Hz)| Solenoid Valve| 200RD2T3TVLC| 200RD2T3TVLC| 200RD2T3TVLC| 200RD2T3TVLC| 200RD2T3TVLC| 200RD3T3TVLC| 200RD3T3TVLC
Solenoid Coil| 61-AMG120/240V| 61-AMG120/240V| 61-AMG120/240V| 61-AMG120/240V| 61-AMG120/240V| 61-AMG120/240V| 61-AMG120/240V
Classic Top Cap w/Label| 91-101123-21| 91-101123-21| 91-101123-21| 91-101123-21| 91-101123-21| 91-101123-21| 91-101123-21

• Bi-flow kits are required when installing a liquid line solenoid on a heat pump.

Weighted Sound Power Level (dBA)

UNIT SIZE – VOLTAGE, SERIES| STANDARD RATING (DBA)| TYPICAL OCTAVE BAND SPECTRUM (dBA without tone adjustment)
---|---|---
125| 250| 500| 1000| 2000| 4000| 8000
MLP15AZ18A| 73| 58.0| 58.8| 62.0| 62.3| 59.2| 56.6| 50.5
MLP15AZ24A| 73| 56.6| 59.6| 62.2| 62.1| 58.8| 55.4| 50.8
MLP15AZ30A| 72| 48.9| 55.3| 63.6| 61.0| 59.1| 56.5| 48.7
MLP15AZ36A| 74| 51.2| 56.4| 63.1| 63.8| 60.8| 57.4| 56.5
MLP15AZ42A| 74| 56.8| 58.7| 65.9| 66.2| 62.9| 59.4| 54.2
MLP15AZ48A| 74| 57.3| 56.6| 64.1| 64.0| 61.1| 58.0| 56.5
MLP15AZ60A| 74| 43.9| 55.2| 63.4| 65.8| 61.7| 57.9| 52.9

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

Unit Dimensions

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
(-)P15AZ18AJ2NA| 25.00| 635.00| 29.75| 755.65| 29.75| 755.65| 27.90| 708.66| 33.25| 844.55| 33.25| 844.55
(-)P15AZ24AJ2NA| 25.00| 635.00| 29.75| 755.65| 29.75| 755.65| 27.90| 708.66| 33.25| 844.55| 33.25| 844.55
(-)P15AZ30AJ2NA| 35.00| 889.00| 33.75| 857.25| 33.75| 857.25| 38.35| 974.09| 37.64| 956.06| 37.64| 956.06
(-)P15AZ36AJ2NA| 39.00| 990.60| 33.75| 857.25| 33.75| 857.25| 42.35| 1075.69| 37.64| 956.06| 37.64| 956.06
(-)P15AZ42AJ2NA| 39.00| 990.60| 33.75| 857.25| 33.75| 857.25| 42.35| 1075.69| 37.64| 956.06| 37.64| 956.06
(-)P15AZ48AJ2NA| 39.00| 990.60| 33.75| 857.25| 33.75| 857.25| 42.35| 1075.69| 37.64| 956.06| 37.64| 956.06
(-)P15AZ60AJ2NA| 51.00| 1295.40| 35.75| 908.05| 35.75| 908.05| 54.50| 1384.30| 39.37| 1000.00| 39.37| 1000.00

CLEARANCES

NOTE: NUMBERS IN () = mm
IMPORTANT: When installing multiple units in an alcove, roof well, or partially enclosed area, ensure there is adequate ventilation to prevent re- circulation of discharge air.

Refrigerant Line Size Information

SINGLE AND TWO-STAGE HEAT PUMPS

UNIT SIZE

| ****

MAX. LIQUID LINE SIZE

| ****

SUCTION LINE SIZE

| OUTDOOR UNIT ABOVE OR BELOW INDOOR UNIT EQUIVALENT LENGTH IN FEET
0- 15| 16- 25| 26- 50| 51- 80| 81- 100| 101- 125| 126- 150
MAXIMUM VERTICAL SEPARATION/CAPACITY MULTIPLIER

1.5 TON

| ****

3/8″

| 1/2″| 15 / 1| 25 / 1| 50 / 0.99| 80 / 0.97| 100 / 0.97| 115 / 0.96| 115 / 0.95
5/8″| 15 / 1| 25 / 1| 50 / 1| 80 / 0.99| 100 / 0.99| 115 / 0.99| 115 / 0.98
3/4″| 15 / 1| 25 / 1| 50 / 1| 80 / 0.99| 100 / 0.99| 115 / 0.99| 115 / 0.98
2 TON| 3/8″| 5/8″| 15 / 1| 25 / 1| 50 / 0.99| 80 / 0.98| 100 / 0.97| 100 / 0.96| 95 / 0.95
3/4″| 15 / 1| 25 / 1| 50 / 1| 80 / 0.99| 100 / 0.99| 100 / 0.99| 95 / 0.98

2.5 TON

| ****

3/8″

| 5/8″| 15 / 1| 25 / 0.99| 50 / 0.98| 80 / 0.97| 95 / 0.96| 90 / 0.94| 85 / 0.93
3/4″| 15 / 1| 25 / 1| 50 / 0.99| 80 / 0.99| 95 / 0.98| 90 / 0.98| 85 / 0.97

3 TON

| ****

3/8″

| 5/8″| 15 / 1| 25 / 0.99| 50 / 0.97| 80 / 0.95| 85 / 0.94| 80 / 0.92| 75 / 0.9
3/4″| 15 / 1| 25 / 1| 50 / 0.99| 80 / 0.98| 85 / 0.98| 80 / 0.97| 75 / 0.96
7/8″| 15 / 1| 25 / 1| 50 / 1| 80 / 0.99| 85 / 0.99| 80 / 0.99| 75 / 0.98
3.5 TON| 3/8″| 3/4″| 15 / 1| 25 / 0.99| 50 / 0.98| 80 / 0.97| 80 / 0.97| 70 / 0.96| 65 / 0.95
7/8″| 15 / 1| 25 / 1| 50 / 0.99| 80 / 0.99| 80 / 0.99| 70 / 0.98| 65 / 0.98
4 TON| 3/8″| 3/4″| 15 / 1| 25 / 0.99| 50 / 0.98| 75 / 0.97| 70 / 0.96| 60 / 0.95| 50 / 0.94
7/8″| 15 / 1| 25 / 1| 50 / 0.99| 75 / 0.99| 70 / 0.98| 60 / 0.98| 50 / 0.97
5 TON| 3/8″| 3/4″| 15 / 1| 25 / 0.99| 50 / 0.97| 65 / 0.95| 45 / 0.94| 30 / 0.92| 15 / 0.9
7/8″| 15 / 1| 25 / 0.99| 50 / 0.99| 65 / 0.98| 45 / 0.97| 30 / 0.96| 15 / 0.96

NOTES

1. Maximum Equivalent Line Length may not exceed 250′.
2. Maximum Actual Line Length may not exceed 200′.
3. Light Grey shaded areas are considered long lines and may require accessories as recommended in the Long Line Set Guide.
4. Refer to the supplemental Long Line Set Guide for applications that require a liquid line size other than 3/8″.
5. DO NOT use suction line traps in the suction riser as this adds additional unwanted pressure drop in the system.

Refrigerant Line Size Information (Con’t.)

SINGLE AND TWO-STAGE HEAT PUMPS

UNIT SIZE

| ****

MAX. LIQUID LINE SIZE

| ****

SUCTION LINE SIZE

| OUTDOOR UNIT ABOVE OR BELOW INDOOR UNIT EQUIVALENT LENGTH IN METERS
0- 5| 5.5- 8| 8.5- 15| 15.5- 24| 24.5- 30| 30.5- 38| 38.5- 46
MAXIMUM VERTICAL SEPARATION/CAPACITY MULTIPLIER

1.5 TON

| ****

3/8″

| 1/2″| 5 / 1| 8 / 1| 15 / 0.99| 24 / 0.97| 30 / 0.97| 35 / 0.96| 35 / 0.95
5/8″| 5 / 1| 8 / 1| 15 / 1| 24 / 0.99| 30 / 0.99| 35 / 0.99| 35 / 0.98
3/4″| 5 / 1| 8 / 1| 15 / 1| 24 / 0.99| 30 / 0.99| 35 / 0.99| 35 / 0.98
2 TON| 3/8″| 5/8″| 5 / 1| 8 / 1| 15 / 0.99| 24 / 0.98| 30 / 0.97| 30 / 0.96| 29 / 0.95
3/4″| 5 / 1| 8 / 1| 15 / 1| 24 / 0.99| 30 / 0.99| 30 / 0.99| 29 / 0.98

2.5 TON

| ****

3/8″

| 5/8″| 5 / 1| 8 / 0.99| 15 / 0.98| 24 / 0.97| 29 / 0.96| 27 / 0.94| 26 / 0.93
3/4″| 5 / 1| 8 / 1| 15 / 0.99| 24 / 0.99| 29 / 0.98| 27 / 0.98| 26 / 0.97

3 TON

| ****

3/8″

| 5/8″| 5 / 1| 8 / 0.99| 15 / 0.97| 24 / 0.95| 26 / 0.94| 24 / 0.92| 23 / 0.9
3/4″| 5 / 1| 8 / 1| 15 / 0.99| 24 / 0.98| 26 / 0.98| 24 / 0.97| 23 / 0.96
7/8″| 5 / 1| 8 / 1| 15 / 1| 24 / 0.99| 26 / 0.99| 24 / 0.99| 23 / 0.98
3.5 TON| 3/8″| 3/4″| 5 / 1| 8 / 0.99| 15 / 0.98| 24 / 0.97| 24 / 0.97| 21 / 0.96| 20 / 0.95
7/8″| 5 / 1| 8 / 1| 15 / 0.99| 24 / 0.99| 24 / 0.99| 21 / 0.98| 20 / 0.98
4 TON| 3/8″| 3/4″| 5 / 1| 8 / 0.99| 15 / 0.98| 23 / 0.97| 21 / 0.96| 18 / 0.95| 15 / 0.94
7/8″| 5 / 1| 8 / 1| 15 / 0.99| 23 / 0.99| 21 / 0.98| 18 / 0.98| 15 / 0.97
5 TON| 3/8″| 3/4″| 5 / 1| 8 / 0.99| 15 / 0.97| 20 / 0.95| 14 / 0.94| 9 / 0.92| 5 / 0.9
7/8″| 5 / 1| 8 / 0.99| 15 / 0.99| 20 / 0.98| 14 / 0.97| 9 / 0.96| 5 / 0.96

NOTES:

1. Maximum Equivalent Line Length may not exceed 76 Meters.
2. Maximum Actual Line Length may not exceed 61 Meters.
3. Light Grey shaded areas are considered long lines and may require accessories as recommended in the Long Line Set Guide.
4. Refer to the supplemental Long Line Set Guide for applications that require a liquid line size other than 3/8″.
5. DO NOT use suction line traps in the suction riser as this adds additional unwanted pressure drop in the system.

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
(-)P15AZ18AJ2N| MLH2TZ2417STANN| 17,100 [5.0]| 13,100 [3.8]| 4,000 [1.2]| 15.2| 11.7| 625 [295.0]| 17,100 [5.0]| 3.87| 11,600 [3.4]| 2.6| 7.8
(-)P15AZ24AJ2N| MLH2TZ2417STANN| 22,800 [6.7]| 17,400 [5.1]| 5,400 [1.6]| 15.2| 11.7| 775 [365.8]| 22,600 [6.6]| 3.88| 15,600 [4.6]| 2.8| 7.8
(-)P15AZ30AJ2N| MLH2TZ3617STANN| 28,400 [8.3]| 21,800 [6.4]| 6,600 [1.9]| 15.2| 11.7| 900 [424.8]| 28,400 [8.3]| 3.62| 19,700 [5.8]| 2.6| 7.8
(-)P15AZ36AJ2N| MLH2TZ3617STANN| 34,200 [10.0]| 26,200 [7.7]| 8,000 [2.3]| 15.2| 11.7| 1,050 [495.5]| 34,200 [10.0]| 3.62| 24,400 [7.2]| 2.7| 7.8
(-)P15AZ42AJ2N| MLH2TZ4821STANN| 40,000 [11.7]| 30,500 [8.9]| 9,500 [2.8]| 15.2| 11.7| 1,325 [625.3]| 39,500 [11.6]| 3.95| 28,200 [8.3]| 2.9| 7.8
(-)P15AZ48AJ2N| MLH2TZ4821STANN| 45,500 [13.3]| 35,000 [10.3]| 10,500 [3.1]| 15.2| 11.7| 1,450 [684.3]| 45,000 [13.2]| 3.92| 33,200 [9.7]| 2.9| 7.8
(-)P15AZ60AJ2N| MLH2TZ6024STANN| 57,000 [16.7]| 43,500 [12.7]| 13,500 [4.0]| 15.2| 11.7| 1,800 [849.5]| 57,000 [16.7]| 4.04| 42,500 [12.5]| 3.0| 7.8

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, will be accessible from the AHRI website: www.ahridirectory.org later this year.

GENERAL TERMS OF LIMITED WARRANTY*

Mainline® will furnish a replacement for any part of this product that 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 Parts

• (Registration Required) ……………………………. 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.”
• www.MainlineCollection.com
• PRINTED IN U.S.A. 9/23 QG FORM NO. PML-827 REV. 1

References

• Reliability is in the Air | Mainline HVAC Products – HVAC Mainline
• ahridirectory.org
• Homepage | ENERGY STAR
• Mainline® - Preferred by the Pros® – Mainline Collection

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