Page 2 - including local OH&S requirements; ONLY; by an Authorised Person.; NOT SUITABLE AS A POOL OR SPA HEATER; For continued safety of this appliance it must be installed and
Rinnai 2 EHPA_VMA Series 2 Heat Pump OIM This appliance must be installed in accordance with:• Manufacturer’s Installation Instructions• Current AS/NZS 3500• Plumbing Code of Australia (PCA)• Local Regulations and Municipal Building Codes including local OH&S requirements This system must be ins...
Page 3 - TABLE OF CONTENTS; Warnings and Important Information; Pressure & Temperature Relief (PTR) Valve �������������������������������������������������������������������������������������������������� 8; Excessive Discharge from Safety Devices ���������������������������������������������������������������������������������������������������� 8; Conducting Insulation (Megger) Tests ���������������������������������������������������������������������������������������������������������� 19; Electrical Connections ����������������������������������������������������������������������������������������������������������������������������������� 19
Rinnai 3 EHPA_VMA Series 2 Heat Pump OIM TABLE OF CONTENTS Warnings and Important Information 4 Safety and Regulatory Information ����������������������������������������������������������������������������������������������������������������� 4Transport and Storage of Appliance ��������������������...
Page 4 - SAFETY AND REGULATORY INFORMATION; store chemicals or flammable materials near this appliance.; WARNINGS AND IMPORTANT INFORMATION
Rinnai 4 EHPA_VMA Series 2 Heat Pump OIM SAFETY AND REGULATORY INFORMATION WARNING DO NOT operate this system before reading the manufacturers instructions� This appliance must be installed, commissioned and serviced by an authorised person in accordance with all applicable local rules and regulatio...
Page 5 - TRANSPORT AND STORAGE OF APPLIANCE; The refrigerant used in the heat pump is a flammable gas.; applicable regulations�; IMPORTANT; IMPORTANT; mounts and associated piping
Rinnai 5 EHPA_VMA Series 2 Heat Pump OIM TRANSPORT AND STORAGE OF APPLIANCE RISK OF FIRE The refrigerant used in the heat pump is a flammable gas. The appliance(s) shall be stored and transported in an area without ignition sources (for example: open flames, an operating gas appliance or an operatin...
Page 6 - SCALD HAZARDS
Rinnai 6 EHPA_VMA Series 2 Heat Pump OIM SCALD HAZARDS HOT WATER CAN CAUSE SCALDS.CHILDREN, DISABLED, ELDERLY AND THE INFIRM ARE AT THE HIGHEST RISK OF BEING SCALDED.FEEL WATER TEMPERATURE BEFORE BATHING OR SHOWERING.SCALDS FROM HOT WATER TAPS CAN RESULT IN SEVERE INJURIES TO YOUNG CHILDREN.SCALDS O...
Page 7 - OPERATION PRINCIPLE; Hot Water from Heat Exchanger to the Tank; MAX; The water will be heated to 57°C using the compression system only.; ECO
Rinnai 7 EHPA_VMA Series 2 Heat Pump OIM OPERATION PRINCIPLE The operation of an electric heat pump is very similar to a refrigerator, but in reverse. A heat pump operates by transferring heat from the ambient outside air into the water. Electricity is just used to operate the system, but not to dir...
Page 8 - SAFETY DEVICES; tamper with or remove safety devices�; This valve is located near the top of the water heater and is; when the easing gear is closed, attendance by an authorised person; dislodge any foreign matter and alleviate the problem.; L ift le v e r u n til w a te r
Rinnai 8 EHPA_VMA Series 2 Heat Pump OIM SAFETY DEVICES The water heating system is supplied with various safety devices including temperature sensors, overheat sensors and switches and a Pressure & Temperature Relief (PTR) valve. These devices must not be tampered with or removed. The water hea...
Page 9 - necessary to switch off the water heater, do so as outlined below:; DO NOT; of hours before hot water is available.; Arrange for an authorised person to carry out this task�; checked to ensure there are no blockages.
Rinnai 9 EHPA_VMA Series 2 Heat Pump OIM ANODE The water heater is fitted with a sacrificial anode to extend it’s life. It will slowly dissipate whilst protecting the cylinder. The life of the water heater may be extended by arranging for an authorised person to inspect the anode and replace it if r...
Page 10 - INSUFFICIENT OR NO HOT WATER; marked “Hot water” or “Water heater” is turned on. (note that the; NO WATER FROM THE TAP; SAVE A SERVICE CALL
Rinnai 10 EHPA_VMA Series 2 Heat Pump OIM Rinnai’s servicing network personnel are fully trained and equipped to give the best service on your Rinnai appliance. If your appliance needs service, ring one of the service contact numbers on the back of this booklet. The pressure and temperature relief v...
Page 11 - See entry under the heading ‘Insufficient or no hot water’; High Electricity Tariffs; electricity supplier to confirm what these tariffs are.; WATER FLOW FLUCTUATIONS; More than one or two hot taps in use at the same time may cause a; WATER HAMMER; a pressure limiting valve and water hammer arrestor as required.; ERR; call Rinnai for assistance if this should occur.
Rinnai 11 EHPA_VMA Series 2 Heat Pump OIM HIGH ELECTRICITY BILLSExcessive hot water consumption See entry under the heading ‘Insufficient or no hot water’ High Electricity Tariffs The electricity tariff will determine the running costs of the system. It is important the end user is aware of the appl...
Page 12 - SYSTEM SPECIFICATIONS; unit will not start for 2 minutes to protect the compressor; SPECIFICATIONS
Rinnai 12 EHPA_VMA Series 2 Heat Pump OIM SYSTEM SPECIFICATIONS EHPA250VMA EHPA250VMAW EHPA250VMAH EHPA250VMAWH EHPA315VMA EHPA315VMAW EHPA315VMAH EHPA315VMAWH Net Weight / Filled Weight 123 kg / 400 kg 138 kg / 451 kg Sound Level 48 dB(A) Ambient Temperature Limits (for heat pump operation - elemen...
Page 13 - DIMENSIONS; Cylinder height
Rinnai 13 EHPA_VMA Series 2 Heat Pump OIM DIMENSIONS EHPA250VMA / EHPA250VMAW / EHPA250VMAH / EHPA250VMAWH) EHPA315VMA / EHPA315VMAW / EHPA315VMAH / EHPA315VMAWH) Cylinder height 1847 2134 Hot Outlet / PTR 1215 1430 Cold water inlet 90 90 Cylinder diameter 627 627 Unit Width 675 675 SPECIFICATIONS
Page 14 - CLEARANCES; flow through the fan.
Rinnai 14 EHPA_VMA Series 2 Heat Pump OIM CLEARANCES Allow 500mm on the fan discharge side and 150 mm clearance on the fan suction side to allow for sufficient air flow through the fan. All measurements outlined below are minimums. Minimum 500 mm Minimum 150 mm 100 mm minimum from the wall Minimum 5...
Page 15 - LOCATION; Internal Installation; Minimum room volume of 39m; INSTALLATION
Rinnai 15 EHPA_VMA Series 2 Heat Pump OIM REGULATIONS AND OCCUPATION HEALTH AND SAFETY (OH&S) WARNING Installation and commissioning MUST be performed by authorised persons� The heat pump MUST be installed in accordance with these instructions and all regulatory requirements which exist in your ...
Page 17 - TRANSPORT AND HANDLING; When moving the unit, it; drain on to grass or garden beds�
Rinnai 17 EHPA_VMA Series 2 Heat Pump OIM TRANSPORT AND HANDLING IMPORTANT When moving the unit, it MUST be close to vertical at all times� When using a trolley to move the unit, ensure it is not tilted more than 45° from the vertical.Non compliance will void warranty and severely affect product per...
Page 18 - CONNECT THE PTR VALVE; ‘Dimensions’ on page 13.; PLUMBING CONNECTIONS; be fitted between the supply main; CONNECT COLD / HOT WATER SUPPLY; D r a in
Rinnai 18 EHPA_VMA Series 2 Heat Pump OIM CONNECT THE PTR VALVE Connect the PTR valve to the uppermost fitting of the storage cylinder. See the diagram on page the section ‘Dimensions’ on page 13. The PTR pressure rating MUST be suited for the cylinder and adequate for the thermal loading applied to...
Page 19 - CONNECT CONDENSATE DRAIN LINE; A condensation drain line is required to be fitted to carry; Condensate; ELECTRICAL TESTS; with the insulation resistance requirements of AS/NZS 3000.; ELECTRICAL CONNECTIONS; be activated until the system is filled; fitted with a power cord & plug, It
Rinnai 19 EHPA_VMA Series 2 Heat Pump OIM CONNECT CONDENSATE DRAIN LINE A condensation drain line is required to be fitted to carry discharge clear of the water heater.The condensate drain line should not be connected to the PTR drain line but can exit to the same point.The diagram below shows the l...
Page 20 - For entry to the element cover remove the two fixing screws.; Electrical; MUST NOT; Disconnect all power prior to installation and commissioning.
Rinnai 20 EHPA_VMA Series 2 Heat Pump OIM Electrical access is via a 20 mm hole beneath the element cover for mounting with an approved weatherproof electrical conduit nipple. For entry to the element cover remove the two fixing screws. Connect all ACTIVE and NEUTRAL wires in accordance with the wir...
Page 21 - WIRING DIAGRAM; Turn on power to the heat pump unit and wait 30 seconds; FINISHING THE INSTALLATION; S R C
Rinnai 21 EHPA_VMA Series 2 Heat Pump OIM WIRING DIAGRAM FILLING THE SYSTEM Open hot water tap at sink.Open the stop cock in the cold water main supply line. Allow the system to fill and the air to bleed through the tap.Turn off the hot tap at the sink when water flows freely without any air bubbles...
Page 22 - OPERATION SEQUENCE OF CONTROLLER; on the ambient conditions this can take several hours.
Rinnai 22 EHPA_VMA Series 2 Heat Pump OIM OPERATION SEQUENCE OF CONTROLLER When the power supply turns on, the heat pump control system initiates and will check the unit’s operating parameters. The controller will check on all sensors, pressure switches and also main voltage. If conditions are suita...
Page 23 - CONTROLLER LED FLASHING CODES
Rinnai 23 EHPA_VMA Series 2 Heat Pump OIM CONTROLLER LED FLASHING CODES Ensure the controller unit is not displaying the ERR indicator once unit has been switched on. Display / Control Panel Indicators Indicator Explanation MAX 60°C using a combination of the compression system and the heating eleme...
Page 24 - CONTACT; Rinnai Australia Pty Ltd; National Help Line
S112069 24 EHPA_VMA Series 2 Heat Pump OIM - Issue B - February 2023 CONTACT Rinnai Australia Pty Ltd ABN 74 005 138 769 | AU45204 100 Atlantic Drive, Keysborough, Victoria 3173P.O. Box 460, Braeside, Victoria 3195Tel: (03) 9271 6625Fax: (03) 9271 6622 National Help Line Tel: 1300 555 545* Fax: 1300...