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Installation - Commissioning Instructions

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RHFE-752ETR COMMISSIONING INSTRUCTIONS F NOTE The gas pressures for the appliance are factory pre-set. For 'extended' flue installations (see page 3). This applies to both Natural and Propane gas versions. Adjustments are to be made only: • When a ‘direct’ flue installation is used (see page 3). • If the appliance is not operating correctly and all other possible causes have been eliminated. • After the replacement of any component(s) or re-assembly after service. 240 VOLTS, RISK OF ELECTRICAL SHOCK! WARNING C Before attempting to remove any panels ensure the heater is isolated from the mains power supply. D B Heater Preparation Remove both the small hatch on right hand side of combustion chamber glass assembly E and the top panel D . A E Control PCB To access the set-up functions of Control PCB A it is necessary to remove the PCB cover B this is held in place with two screws C , remove screws and lift the cover clear of the Control PCB. Checking For Correct Settings It is important to ensure that the heater is correctly set up for local conditions. The heaters settings are shown on the LED display 10 of the Control PCB. If any of the following settings are not correct, check the appliance data plate to confirm the model type. 2 1 4 3 6 5 10 9 8 7 240 VOLTS, RISK OF ELECTRICAL SHOCK! WARNING When performing the commissioning the appliance electrical power will need to be connected. Exercise CAUTION as there is potential for electric shock from the exposed wiring and circuitry. DO NOT leave the appliance unattended when power is connected and the panels are removed. PRESSURE SETTINGS NOTE The pressures given in the table below are correct at the time of printing, however they should always be checked against those printed on the data plate of the appliance. In case of a discrepancy, the pressures on the data plate must be used. Differential Pressures (kPa): Gas Type Flue Length Pilot (Stage 1) (Stage 3) (Stage 4) (Stage 7) Supply Gas Pressure (kPa): Natural Extended Direct 0.90 0.90 0.20 0.20 0.37 0.37 0.48 0.48 0.72 0.84 Natural 1.13 Propane Extended Direct 1.35 1.35 0.21 0.21 0.72 0.72 1.02 1.02 1.58 1.95 Propane 2.75 When replacing the combustion chamber glass assembly, take care that it is correctly sealed to the combustion chamber. CAUTION Rinnai 1 RHFE-752ETR COMM GAS PRESSURE SETTING CHECKING SUPPLY PRESSURE 1. Remove the Inlet test point screw hose. F and connect the manometer 2. Press the heater "ON/OFF" 7 button to start the ignition sequence. Ensuring the correct flowing pressure is available with all other appliances operating on high. 3. Press the heater "ON/OFF" 7 button to stop the heater operation. 4. Disconnect the manometer hose and replace the Inlet test point screw F . Check the flueing section of the Operation/Installation Manual to see if down rating is required. IMPORTANT Before commencing with the setting of the burner pressures, the correct flue length must be set. 3 F The appliance is factory set for ‘extended’ flue installations with the dip switch (SW7) set to L-F (Long Flue). For direct flue For extended flue For a ‘Direct’ flue installation (see ‘Direct’ Flue Installation definition on page 3) set dip switch (SW7) to S-F (Short Flue). SETTING IGNITION PRESSURE 1. Remove the Ignition test point screw manometer hose. 2. Press the heater "ON/OFF" 7 G and connect the G button to start the heater. 3. Press the test button 1 twice, the heater will light to the main burner on its lowest setting (stage 1) and the display 10 will show . 4. Adjust the ignition pressure as required by manually adjusting the ignition regulator. Press the heater "ON/OFF" 7 button to stop the heater operation. 5. Disconnect the manometer hose and replace the Ignition test point screw G . SETTING OPERATING PRESSURE 1. Remove Combustion Chamber test point screw negative manometer hose. 2. Remove Gas Control test point screw manometer hose. 3. Press the heater "ON/OFF" 7 H I and connect the H and connect the positive button to start the heater. 4. Press the test button 1 twice, the heater will light to the main burner on its lowest setting (stage 1) and the display 10 will show . I 5. Press the Up 5 or Down 6 buttons to set the differential pressure value for the appropriate gas type in accordance with the “Differential Pressures” table. Press the Set 2 button once to save setting. 6. The display 10 will now show (main burner stage 3). Press the Up 5 or Down 6 buttons to set the differential pressure value for the appropriate gas type in accordance with the “Differential Pressures” table. Press the Set 2 button once to save setting. Rinnai 2 RHFE-752ETR COMM GAS PRESSURE SETTING 7. The display 10 will show (main burner stage 4). Press the Up 5 or Down 6 buttons to set the differential pressure value for the appropriate gas type in accordance with the “Differential Pressures” table. Press the Set 2 button once to save setting. 8. The display 10 will show (main burner stage 7). Press the Up 5 or Down 6 buttons to set the differential pressure value for the appropriate gas type in accordance with the “Differential Pressures” table. Press the Set 2 button once to save setting. 9. The display 10 will show . If the display does not change to then there was an error in the commissioning and it should be carried out again. 10. Press the heater "ON/OFF" 7 button to stop the heater operation. 11. Commissioning is now complete, remove the positive manometer hose and replace the Gas Control test point screw H . Remove the negative manometer hose and replace the Combustion Chamber test point screw I to complete the procedure. 12. Replace the Control PCB cover appliance. B and the top panel D of the 13. Replace both the small hatch on right hand side of combustion chamber glass assembly E and the top panel D . C D B A E 14. Check operation of the appliance. 15. Return the commissioning instruction sheet to its plastic pouch. ‘EXTENDED’ OR ‘DIRECT’ FLUE INSTALLATION IMPORTANT A ‘direct flue installation applies when the flue system uses the ‘ASPDFK - Direct Flue Kit’ ONLY (as illustrated right). If additional Rinnai ASP/ES flue components are required to extend the flue system it is considered an ‘extended’ flue installation. Rinnai 3 RHFE-750ETR COMM WIRING DIAGRAM CONTROL DISPLAY UNIT RCR 123456 r bl bl w bk r 11 33 OH.TH 2 1 2 1 2 blk blk 12 11 10 9 8 7 6 5 4 3 2 1 bl bl r r bk w R.TH TF N 3 4 1 2 L K w w bk bk 4 3 2 1 J bl 9 8 7 6 5 4 3 2 1 3 w 1 11 w bk r 4 4 bl BL MED LO COM HI FM 2 1 bl br F (3A) C gr/y AC 230-240V I H D E G 5 4 gy gy y r w bl COM HI MED LOW M 3 2 1 w w bk r bl B 2 1 bl r 1 2 3 4 A 3 2 1 gy or OH.TH 1 1 2 F 6 5 4 3 2 1 3 2 1 pl gy or y or gr/y 4 3 6 5 4 3 bl w y bk 2 1 1 bk bk y bk br bl w + - POV bl F R 1 8 6 34 1 SV1 F R 4 SV2 IGN SP SV3 MB F F R R 2 3 TR ER L R CONTACTS Australia Pty. Ltd. Internet: www.rinnai.com.au E-mail: [email protected] ABN 74 005 138 769 Head Office National Help Lines 10-11 Walker Street, Braeside, Victoria 3195 P.O. Box 460 Tel: (03) 9271 6625 Fax: (03) 9271 6622 Spare Parts & Technical Info Tel: 1300 555 545* Fax: 1300 300 141* Rinnai *Cost of a local call Higher from mobile or public phones. 4 RHFE-752ETR COMM / RA 11.027 / RNZ 12258 / Issue A 30/5/12