Midea 19SEER 5ton Inverter Rooftop Instruction Manual

Midea 19SEER 5ton Inverter Rooftop

Product Specifications

• Model: 19SEER 5ton Inverter Rooftop
• Capacity: 57000 Btu/h
• SEER: 19
• EER: 12.5
• HSPF: 8.5
• Compressor: GMCC High Efficiency Rotary Compressor
• Features: Inverter technology, Two-speed blower, DC fan motor, Modular design, Self-learning control
• Structure: Sheet metal with Glass fiber cotton insulation
• Compatibility: Compatible with various applications including rooftop, horizontal, and downflow
• Control: Advanced control system for precise operation

Product Usage Instructions

Rooftop Application
For rooftop installation, ensure proper support and secure mounting to withstand outdoor conditions.

Horizontal Application
When installing horizontally, make sure the unit is level for optimal performance and drainage.

Downflow Application
For downflow setup, ensure proper ductwork connections and airflow direction for efficient cooling.

Detailed Features Overview

GMCC High Efficiency Rotary Compressor
The high-efficiency compressor ensures reliable performance and energy savings.

Two-Speed Blower
The unit features a two-speed blower for automatic adjustment based on cooling requirements.

DC Fan Motor
The DC fan motor offers 10-speed settings for customized airflow control.

Modular Design
The modular design allows for easy field installation of additional components like Gas module and EH.

Self-Learning Control
The system utilizes self-learning technology for precise control, comfort, and increased efficiency.

Frequently Asked Questions (FAQ)

• Can the unit be controlled remotely?
  Yes, the unit can be integrated with smart home systems for remote control.

• How often should the filters be cleaned?
  Filters should be checked monthly and cleaned or replaced as needed for optimal performance.

Rooftop Application

Features overview

Detailed Features

GMCC High Efficiency Rotary Compressor

①| Indoor blower| ⑥| EXV|
---|---|---|---|---
②| Indoor motor| ⑦| Outdoor motor|
③| EVP| ⑧| Outdoor Fin|
④| COD| ⑨| RV|
⑤| Comp| ⑩| PCB|

Size comparison

Structure and Dimension

5Ton UNIT

| SUPPLY AIR Duct| RETURN AIR Duct
---|---|---
LENGTH (IN)| WIDTH (IN)| LENGTH (IN)| WIDTH (IN)
HORIZONTAL| 15-15/16″| 13-15/16″| 15-15/16″| 13-15/16″
DOWN FLOW| 16-9/16″| 14-9/16″| 16-9/16″| 14-9/16″

Electrical Parts

• SW1 + port for WIFI kit connect and setting
• SW2+SW3 button for check data/force mode/testing mode/manual defrost.
• SW4-1 + JC1 + JC2 for model setting
• SW4-2/3/4 for capacity requirement setting
• SW5 for defrost setting
  Switch| Position| Function
  ---|---|---
  SW1| For wifi settings
  SW2&3| For check data/force mode/testing mode/manual defrost
  SW4-1| ON| Program For rooftop package
  OFF| Program For IDS
  SW4-2| Not used
  SW4-3| ON| Adaptive capacity output disabled
  OFF| Adaptive capacity output enabled
  SW4-4| ON| Accelerated cooling/heating
  OFF| Normally cooling/heating
  SW5-1| ON| Operating time is reduced by 10%
  OFF| Normal
  SW5-2| ON| Defrosting extended for 60 seconds
  OFF| Normal
  JC1| ON| Heat pump
  OFF| Cooling only
  JC2| ON| For 3/5ton Capacity(default setting)
  OFF| For 2/4ton Capacity

Defrost Control Logic

• The Demand Defrost Control (DOC) monitors the ODU coil temperature using thermistor (T3). A second thermistor (T4) monitors outdoor ambient temperatu re. Based on these parameters, as well as accumulative run time and high pressure, the DOC calculates proper initiation of defrost.
• Any one of the three conditions is required to enter defrost:
  1. The calculated temperature difference between the outdoor temperature (T 4) and the coil temperature (T3) is called Delta T. After Delta T is achieved and continues for 3 minutes.
  • T4;:: 39°F, Delta T = 18°F
  • T4 ‘.2: 30°F, Delta T = 16°F
  • T4 ‘.2: 19°F, Delta T = 14°F
  • When T4 < 19°F, T3 < 9°F, accumulative compressor run time ‘.2: 80 minutes.
  2. After “Minimum Run Time• (MRT) is achieved. MRT is based on outdoor ambient temperature (T 4 ), for example:
  • MRT is 4 hours when: T4 < 23°F
  • MRT is 2 hours when 23°F ~ T4 < 42°F
  3. After the high pressure satu ration temperature drops below 82°F for 20 minutes.
• Defrost will terminate once outdoor coil temperature (T3) reaches 64°F for a period of 1 minute or defrost time has exceeded 8 minutes.
• Defrost Termination Settings (SW5) offers different defrost termination options for enhanced defrost for different geographical and outdoor conditions.

24V Control Wiring

Two Speed Indoor Blower Control

ECM-Airflow Performance

System Pipe Design

Specification Table

Capacity

| ARI net capacity (Btu)| 57000
---|---|---
EER| 12.5
SEER| 19
Nominal CFM| 1750
System power (kW)| 4.56
Refrigerant type| R410a
Refrigerant charge (lb-oz)| 12-9
ARI HEATING PERFORMANCE|
47°F Capacity rating (Btu)| 57000
System power (kW)| 4.5
17°F Capacity rating (Btu)| 41500
System power (kW)
HSPF (BTU/Watts-hr.)| 9
DIMENSIONS (Inches)| Length| 51-9/16
Width| 44-13/16
Height| 52
Weight| OPERATING WT. (lbs)| 562
COMPRESSORS| Type| Rotary
Quantity| 1

CONDENSER COIL

DATA

| Face area (Sq. Ft)| 20.17
Rows| 3
Fins per inch| 17
Tube diameter(inch)| 9/32
Circuitry type| interlaced

EVAPORATOR COIL DATA

| Face area (Sq. Ft)| 6.1
---|---|---
Rows| 4
Fins per inch| 17
Tube diameter(inch)| 9/32
Circuitry type| interlaced
Refrigerant control| | EEV

CONDENSER FAN

DATA

| Fan diameter (inch)| 25-3/5
Type| Prop
Drive type| Direct
No. speeds| 10
Number of motors| 1
Motor HP each| 1/3
RPM| 200~880
Nominal total CFM| 4100

DIRECT DRIVE EVAP FAN DATA

| Quantity| 1
Fan Size (Inch)| 11×10-5/8
Type| Centrifugal
No. speeds| 5
Motor HP each| 3/4
RPM| 1075
Motor frame size| 48

Electrical Data

| Voltage-Phase-Hz| 208/230-1-60
Minimum Circuit Amp| 41.9
Max. Overcurrent

Protection

| 60
Min / Max Volts| 173 / 269
Operating Range| Cooling| 23°F-125.6°F
Heating| -4°F-86°F

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