Mestek HP 0275 Series Installation And Instruction Manual
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Mestek HP 0275 Series Installation And Instruction Manual

Commercial heat pump inverter air-to-water
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Commercial
Heat Pump
Inverter Air-to-Water
HP Series 0275
Installation and
Instruction Manual
260 North Elm Street
7555 Tranmere Drive
Westfield, MA 01085
Mississauga, Ontario L5S 1L4 Canada
Phone: (413) 564-5540
Phone: (905) 670-5888
www.mestek.com
HP-IOM-1

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  • Page 1 HP-IOM-1 Commercial Heat Pump Inverter Air-to-Water HP Series 0275 Installation and Instruction Manual 260 North Elm Street 7555 Tranmere Drive Westfield, MA 01085 Mississauga, Ontario L5S 1L4 Canada Phone: (413) 564-5540 Phone: (905) 670-5888 www.mestek.com...

  • Page 2: Read Before Proceeding

    Commercial Heat Pump - Inverter Air-to-Water Read Before Proceeding Hazard Definitions ■ In order to provide the customers with high quality, strong The following terms are used throughout this manual to bring reliability and good versatility in a product, this heat pump attention to the presence of potential hazards or to important is produced by strict design and manufacturing standards.

  • Page 3: Specifications

    Commercial Heat Pump - Inverter Air-to-Water Specifications Choose the Correct Size Heat Pump Perform appropriate load calculation to determine required heating or cooling load for the project. Refer to specifications in this manual to determine proper size heat pump. Table 1 Specification Data HP0275 Capacity Range Btu/hr...

  • Page 4: Installation Location

    Commercial Heat Pump - Inverter Air-to-Water Specifications Figure 1 Dimensions 84" Water outlet DN65 Water inlet 24" Electrical box 6.5" 23" 86" 63" 43" 46" 4 x M12 Rubber feet Mounting position Foot mounting dimensions: 63" x 43" Installation Transporting Installation Location During transportation, be sure that the unit is always standing up.
  • Page 5 Commercial Heat Pump - Inverter Air-to-Water Installation Figure 3 Required Clearances (in) 40.0 40.0 40.0 60.0 40.0 40.0 Figure 4 45° 60.0 40.0 60.0 40.0 40.0 40.0+H 40.0+H 10.0 10.0 15.0 15.0 – 5 –...

  • Page 6: Prior To Initial Start-Up

    Commercial Heat Pump - Inverter Air-to-Water Installation Prior to Initial Startup • Check the water loop to ensure there is sufficient water inside the expansion tank, the water loop is full of water/glycol mix* and without any air. Also make sure there is good insulation for Before proceeding read and fully understand the piping.

  • Page 7: General Piping Requirements

    Commercial Heat Pump - Inverter Air-to-Water System Piping General Piping Requirements General Piping Requirements Improper piping of this heat pump will void the manufacturer’s warranty and can cause system failure resulting in flooding and extensive property All system piping must be installed by a qualified technician in damage! accordance with the latest revision of the ANSI/ASME Boiler and Pressure Vessel Code, Section IV.

  • Page 8: Pump Requirements

    Commercial Heat Pump - Inverter Air-to-Water Water Treatment Pump Requirements This heat pump was designed to operate in a closed loop heating This heat pump requires a continuous minimum water flow for system. System fill water must not contain more than 500 ppm of proper operation.
  • Page 9 HP (Model/Series) HP (Model/Series) INDOOR MECHANICAL SPACE OUTDOOR UNITS INDOOR MECHANICAL SPACE Commercial Heat Pump - Inverter Air-to-Water OUTDOOR UNITS Figure 6 Typical Multiple Heat Pump Reverse Return Piping (RECOMMENDED) SYSTEM HP (Model/Series) SUPPLY INDOOR MECHANICAL SPACE OUTDOOR UNITS SYSTEM SUPPLY CIRCULATOR SYSTEM...

  • Page 10: Electrical Power Connections

    Commercial Heat Pump - Inverter Air-to-Water Electrical Wiring and Controls Electrical Connections The electrical connections to this heat pump must be made in accordance with all applicable local codes and the latest revision • The power supply must go through the wire access and be of the National Electrical Code, ANSI /NFPA-70.
  • Page 11 Commercial Heat Pump - Inverter Air-to-Water 5.Controlling and Operation Electrical Wiring and Controls (2) Controller interface diagram and definition Figure 10 Controller Interface Diagram and Definition ⑤ ④ ③ ② ① ⑤ ④ ③ ② ① ⑤ ④ ③ ② ①...
  • Page 12 Commercial Heat Pump - Inverter Air-to-Water 5.Controlling and Operation (3) The input and output interface instructions Table 4 The Input and Output Interface Instructions Sign Meaning Sign Meaning AI/DI1 Water inlet temperature AI/DI29 No use AI/DI2 Water outlet temperature AI/DI30 No use AI/DI3 System 1 antifreeze temperature...
  • Page 13 Commercial Heat Pump - Inverter Air-to-Water 5.Controlling and Operation Table 4 The Input and Output Interface Instructions Sign Meaning Sign Meaning AI/0-5V_IN2 System 2 low pressure sensor CN17 No use 0-5V_IN3 System 1 high pressure sensor OUT1 System 1 fan output (low speed) 0-5V_IN4 System 2 high pressure sensor OUT2...

  • Page 14: Controls And Operation

    Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Every heat pump is shipped with a wired touch screen controller. The controller should be mounted in an area safe from debris or potential for damage and mounted securely. Startup Screen 95°F 131°F 110°F...
  • Page 15 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Home Screen in "On" Mode 13 14 15 16 17 18 19 78°F °F 82°F 104°F Table 5 Button Function 45°F – 15 –...
  • Page 16 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Table 6 Running Status Icons Description Icon Description Indicating the operating status: Display circle ⑨ blue--cooling mode; red-heating mode; grey-power-off mode. Indicating the target temperature of inlet water ⑩ Indicating the date and time Indicating the ambient temperature Indicating the Temp Timer function is activated Indicating that the mute mode is activated...

  • Page 17: Timer Functions

    Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Timer Functions Fig. 4 Timer interface Button Function Button function Name Function Press to enter temp timer settings. Here you can set the Temp Timer schedule and timer based on specific building requirements. Press to enter power timer screen.

  • Page 18: Power Timer

    two segments of different time periods can be set according to different modes. When the system time enters the staggered peak time and the time-sharing temperature control function is enabled, the main interface displays “ ”. Commercial Heat Pump - Inverter Air-to-Water To enalbe Temp Timer function, firstly press Timer button ⑤...
  • Page 19 5.Controlling and Operation 5.Controlling and Operation Commercial Heat Pump - Inverter Air-to-Water Mute Timer Mute Timer Controls and Operation To enalbe Mute Timer function, firstly press Timer button ⑤ in the main inter- To enalbe Mute Timer function, firstly press Timer button ⑤ in the main inter- face, secondly press Mute Timer button (Fig.4), it jumps to Mute Timer face, secondly press Mute Timer button...

  • Page 20: Status Button

    Commercial Heat Pump - Inverter Air-to-Water Controls and Operation 120°F 116°F 86°F Fig.8-1 Running Status interface Fig.8-2 Unit Status interface Status Button Unit Info This menu allows access to the specific details to that units By pressing the "status" button the installer will be able to view software code, and software version for the main board, wired the current running status of the unit and the status of many of controller, and each inverter boards.

  • Page 21: Input Field

    Commercial Heat Pump - Inverter Air-to-Water 5.Controlling and Operation Controls and Operation Parameter Button Parameter inquiry function Pressing the “Parameter” button allows installers to access/adjust certain parameters. Refer to the parameter chart for all accessible In the Setting interface (Fig.7), press Parameter button and enter password “22”...
  • Page 22 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Parameter List Code Parameter Range Fan motor Speed 0-[1 Speed]/1-[2 Speed]/2-[AC]/3-[DC] Cooling High Speed Pressure 0~50bar Cooling High Speed Coil Temp -15.0~60.0°C (5-140°F) Cooling Low Speed Pressure 0~50bar Cooling Low Speed Coil Temp -15.0~60.0°C (5-140°F) Cooling Motor Off Pressure 0~50bar...
  • Page 23 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Parameter List Code Parameter Range EEV Adjust Mode 0-[Manual]/ 1-[Auto] Defrost Steps 0~500N Cooling Section AT Setpoint -30~80°C (-22-176°F) Cooling Section 1 Steps 0~500N Cooling Section 2 Steps 0~500N Heating Section AT Setpoint 1 -30~80°C (-22-176°F) Heating Section AT Setpoint 2 -30~80°C (-22-176°F)
  • Page 24 5.Controlling and Operation Commercial Heat Pump - Inverter Air-to-Water Parameter inquiry function Controls and Operation In the Setting interface (Fig.7), press Parameter button and enter password “22” to jump to Installer Parameter interface for inquiring relevant parameters (Fig.9) . Parameter List Code Parameter Range...
  • Page 25 e) Temperature curve record is provided with power off memory function; In case of disturbed curve recording and display, after the next power on, the Commercial Heat Pump - Inverter Air-to-Water wire controller will automatically clear the history curve record and the curve recording function will restore to a normal state.
  • Page 26 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation The integrated HP control can be controlled using Modbus to perform a variety of demands. A connection to the Modbus port on the control board is required. Utilize the chart below to determine the appropriate addresses and functionality that is required for the project.
  • Page 27 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Display Address Function Name Byte length Read/write Options Data Type Paramater 1080 03/16 cooling duty cycle at minimum fan speed double-byte read/write default 50% (range 0~F17%) DIGI1 1081 03/16 cooling minimum fan speed double-byte read/write default 600r (range 300~F17r) DIGI1...
  • Page 28 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Display Address Function Name Byte length Read/write Options Data Type Paramater 1225 03/16 (heating) second stage timed temperature control end time double-byte read-only default 21h (range 0~23h) DIGI1 1226 03/16 (heating) second stage timed temperature control setpoint double-byte read-only default 45°C (range R21~R22°C)
  • Page 29 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Display Address Function Name Byte length Read/write Options Data Type Paramater 2113 system 2 evaporator temperature double-byte read-only -45~34°C TEMP1 2114 system 2 overtemperature double-byte read-only -30~97°C TEMP1 2117 unit water flow double-byte read-only 0~100m³/h...
  • Page 30 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Display Address Function Name Byte length Read/write Options Data Type Paramater 2167 bit0 S01 system 1 overpressure switch (0-closed/1-open) double-byte read-only DIGI1 bit1 S03 system 2 overpressure switch (0-closed/1-open) double-byte read-only bit4 S02 system 1 underpressure switch (0-closed/1-open) double-byte...
  • Page 31 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Display Address Function Name Byte length Read/write Options Data Type Paramater 2177 bit0 E035 low water flow protection fault double-byte read-only DIGI1 bit1 PP12 system 1 high-side pressure sensor fault double-byte read-only bit2 PP22 system 2 high-side pressure sensor fault...
  • Page 32 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation Display Address Function Name Byte length Read/write Options Data Type Paramater 3011 bit0 : reserved DIGI1 bit10 : changes occured in address 1001-1090 (0-false/1-true) bit20 : changes occured in address 1091-1180 (0-false/1-true) 03/16 color display line controller status flag...
  • Page 33 Commercial Heat Pump - Inverter Air-to-Water 5.Controlling and Operation Controls and Operation 5.3 Electronic control failure code and troubleshooting table Failure code and troubleshooting table Table 11 Error Codes and Troubleshooting Protection/failure Codes Causes Possible fixes Abnormal communication between wire Inspect whether the wire controller, the main Communication Fault controller and the main board...
  • Page 34 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation 5.Controlling and Operation Table 11 Error Codes and Troubleshooting Protection/fault Codes Causes Possible fixes Inspect whether the water flow of the water pipe conforms to related requirements and check the Water Flow Switch Prot. 3+ E032 The water system has no or only few water water pump for any damages...
  • Page 35 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation 5.Controlling and Operation Table 11 Error Codes and Troubleshooting Protection/fault Codes Causes Possible fixes Inspect and replace System 2 exhaust Syst2: Exhaust Air Temp Sensor Fault P281 Open circuit or short circuit of the temperature sensor temperature sensor Inspect and replace System 2 low-voltage sensor Syst2: Low Pressure Sensor Fault...
  • Page 36 Commercial Heat Pump - Inverter Air-to-Water Controls and Operation 5.Controlling and Operation Table 11 Error Codes and Troubleshooting Protection/fault Codes Causes Possible fixes Fan 1 Running IPM Prot. F104 System 1 fan running current is too large Check if the system 1 fan rotor is locked Fan 1 Overcurrent Prot.
  • Page 37 (2) years from date of installation or 18 months from date of shipment from Mestek. This Air-to-Water Heat Pump is designed to operate in a closed loop heating system. System fill water must not contain more than 500 ppm Total Dissolved Solids and a minimum 80 ppm - maximum 200 ppm Water Hardness.
  • Page 38 Commercial Heat Pump - Inverter Air-to-Water – 38 –...
  • Page 39 Commercial Heat Pump - Inverter Air-to-Water – 39 –...
  • Page 40 260 North Elm Street 7555 Tranmere Drive Westfield, MA 01085 Mississauga, Ontario L5S 1L4 Canada Phone: (413) 564-5540 Phone: (905) 670-5888 www.mestek.com...

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