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Hot Water Heat Pumps

8.5kW 300L Hydronic Cylinder System

PUZ-WM85VAA-BS 300L

The Ecodan hydronic outdoor unit and indoor cylinder provide whole home heating and domestic hot water with fast heat-up times using plate heat exchanger technology. The system is suitable for underfloor, radiator and fan coil heating systems.

Heating Capacity8.5 kW
Cylinder300 Litre
Select a Size

Features

New Intuitive Touch Screen Controller

The easy to use touchscreen allows for easy monitoring of energy use and tailored comfort control. The improved commissioning wizard offers easier installation for contractors.

Key Features

  • Self-contained unit, only requiring water and electric connections
  • Single phase power supply with a low starting current
  • Low maintenance and quiet operation
  • Optional 2-Zone Energy Efficient Space Heating Control
  • Energy monitoring as standard
Domestic Applications
  • Underfloor and radiator heating
  • The vast majority of NZ homes
Commercial Applications
  • Small retail outlets
  • Health clinics
  • Public sector and commercial buildings

Reduced Environmental Impact with R32 Refrigerant

R32 has a Global Warming Potential (GWP) one third that of conventional R410A refrigerant. The use of the R32-compatible compressor and advanced control system allows for 30% reduction in refrigerant volume and approximately 75% reduction in CO2 equivalent in some models.

*5 1 Source: IPCC 4th assessment report, global warming potential (GWP) 100-year-value. Comparison of R410A and R32 based on Regulation (EU) no 517/2014.
*6 Source: R410A, PUHZ-HW140VHA2 R32: PUZ-HWM140VHA

Ecodan Technology, Smart Energy Monitoring and System Management

Energy monitoring and management of the Ecodan Heat Pump System means families now have the visibility and freedom to efficiently manage their overall household power consumption for heating and hot water. Energy monitoring ensures households can take advantage of off-peak tariffs, providing them the ability to save even more on their power bill.

Smart Energy Monitoring

View electricity consumption and heat output on the remote controller. End-users can now easily check the following:
  • Consumed electrical energy for space heating, cooling and domestic hot water (kWh)
  • Delivered energy for space heating, cooling and domestic hot water (kWh)

Other Features

  • Monthly and yearly data are stored and can be displayed using the main remote controller
  • External power meter and heat meter can be connected for accurate measurement
  • An SD card is included for storing usage data

Auto Adaptation

Our advanced Auto Adaptation Function measures the room temperature and outdoor temperature, calculating the required heating capacity for the room. The flow temperature is automatically controlled according to the required heating capacity, while optimal room temperature is maintained at all times; ensuring the appropriate heating capacity and preventing energy wastage.

Future Room Temperature Estimation

2-Zone Control Allows you to Simultaneously Control Two Different Temperature Zones

Using Ecodan, it is possible to control two different flow temperatures, thereby managing two different heating load requirements. The system can adjust and maintain two flow temperatures when different temperatures are required for different rooms; for example, controlling a flow temperature of 40°C for the bedroom radiators and another flow temperature of 30°C for the living room underfloor heating.

Plate Heat Exchanger and Patented Scale Trap Technology*

The Ecodan Cylinder contains Mitsubishi Electric's Aluminium Plate Heat Exchanger and patented Scale Trap Technology to help achieve greater efficiencies. In conventional systems, there is a risk of calcium scale building up on the Plate Heat Exchanger if it is exposed to tap water directly; therefore making it difficult to heat tap water. To resolve this problem, Ecodan is equipped with a “Scale Trap” that catches calcium nuclei in the tap water before it has a chance to grow into large scales, thereby inhibiting build-up in the External Heat Exchanger. Ecodan can use a Plate Heat Exchanger to heat tap water, resulting in much higher domestic hot water performance. In the case of special localised conditions such as very hard tap water, please consult a specialist before installation.

The Secret Behind Our External Plate Heat Exchanger System

* Only available on Mitsubishi Electric made Cylinders.

Specifications

PUZ-WM85VAA-BS - 8.5kW R32 Packaged Outdoor Unit

Function: Hot Water Heating
Type: Packaged Air Source Heat Pump
Refrigerant Type: R32
HEATING (A7/W35)*1
Capacity [kW]: 8.50
Power Input [kW]: 1.77
COP: 4.80
HEATING (A2/W35)*2
Capacity [kW]: 8.50
Power Input [kW]: 2.42
COP: 3.51
COOLING (A35/W7)*3
Capacity [kW]: 7.50
Power Input [kW]: 2.38
EER: 3.15
COOLING (A35/W18)*4
Capacity [kW]: 7.50
Power Input [kW]: 1.53
EER: 4.90
OPERATING RANGE
Heating Operation Ambient Temperature [°C DB]: -20 ~ +24
Cooling Operation Ambient Temperature [°C DB]: +10 ~ +46
DHW Operation Ambient Temperature [°C DB]: -20 ~ +35
OPERATING CHARACTERISTICS
Sound Pressure Level at 1m [dBA]*¹: 45
Flow Rate [L/min]: 10.8 - 24.4
ELECTRICAL DATA
Power Supply: 230V / Single Phase / 50 Hz
Maximum Current / Fuse Rating [A]: 22.0 / 25
GENERAL
Water Pipe Size: 1" BSP Parallel Thread. ISO 228/1-G1B)
Dimensions (WxDxH) [mm]: 1050 x 480 x 1020
Weight [kg]: 98
Notes

*1 Under normal heating conditions at outdoor temp: 7°CDB / 6°CDB, outlet water temp 35°C, inlet water temp 30°C including pump input based on EN14511.
*2 Under normal heating conditions at outdoor temp: 2°CDB / 1°CDB, outlet water temp 35°C, inlet water temp 30°C including pump input based on EN14511.
*3 Under normal cooling conditions at outdoor temp: 35°CDB / 34°CDB, outlet water temp 7°C, inlet water temp 12°C including pump input based on EN14511
*4 Under normal cooling conditions at outdoor temp: 35°CDB / 34°CDB, outlet water temp 18°C, inlet water temp 23°C including pump input based on EN14511
*5 Grille

ERPT30X-VM6EE - FTC7 Hydronic Indoor Cylinder

Type: Ecodan Hydronic Cylinder
Operating Ambient Temperature*1: 0 ~ +35°C (RH<80%)
Sound Power Level [dBA]: 40
WATER DATA
Water Pipe Connections Heating / DHW: G1 Compression / G3/4 thread
Nominal Thermal Store Tank Volume [L]: 300
Primary Expansion Vessel [L]: None
Target Temperature Range
DHW Supply Maximum Temperature [°C]: 40 - 60
Space Heating Flow Temperature [°C]*2: 20 - 60
Space Heating Room Temperature [°C]: 10 - 30
Space Cooling Flow Temperature [°C]: 5 - 25
WATER SAFTEY DEVICES - Primary Circuit
Control Thermistor THW3 [°C]: 1 - 80
Pressure Relief Valve [MPa (Bar)]: 1.0 (10)
Flow Sensor (Minimum Flow 5.0L/min): Supplied
WATER SAFTEY DEVICES - Booster Heater
Manual Reset Thermostat [°C]: 90
DHW Control Thermistor THW1 [°C]: 75
Thermal Cut-out (for dry run prevention) [°C]: 121
ELECTRICAL DATA - Control Board
Power supply: 230-240V / Single Phase / 50 Hz
Current [A]: 1.95
Breaker [A]: 10
ELECTRICAL DATA - Booster Heat
Power supply: 230-240V / Single Phase / 50 Hz
Capacity [kW]: 2+4
Current [A]: 26
Breaker [A]: 32
GENERAL
Dimensions (WxDxH) [mm]: 595 x 680 x 2050
Weight (Empty / Full) [kg]: 105 / 412
Notes

*1. The cylinder environment must frost-free.

Downloads

Support

Warranty

  • Mitsubishi Electric Ecodan Hot Water Heat Pumps come with a 5 Year Parts and Labour Warranty.

    Warranty commences from the date the system is purchased and installed. The installer must also fill out and return a BDT commissioning form applicable to the original purchaser. The installer must also have completed the Ecodan training course. Equipment defects covered by this warranty will be repaired or replaced at the discretion of BDT without cost to the owner for parts or direct repair labour. A BDT authorised repair company shall carry out the repair or replacement during normal business hours.

    Any Mitsubishi Electric Ecodan parts or equipment replaced under the warranty will be warranted in accordance with the provisions of this warranty for the remainder of the original warranty period or 12 months from the completion of the repair, whichever is the greater.

    Except where inconsistent with the owner?s statutory rights and the rights given by this warranty, all other warranties and all liability of BDT for any loss or damage direct and consequential is expressly excluded.

    For full details view warranty terms and conditions.pdf (125 KB)

Other

Central Heating