Owner’s Guide and Installation Instructions Continuous Flow Gas Water Heater 244 series 627 models This water heater must be installed and serviced by a qualified person. Please leave this guide with the householder.
Warning: Upon completion of the installation and commissioning of the water heater, leave this guide with the householder or a responsible officer. DO NOT leave this guide inside of the cover of the water heater, as it may interfere with the safe operation of the water heater or ignite when the water heater is turned on. PATENTS This water heater may be protected by one or more patents or registered designs in the name of Rheem Australia Pty Ltd or Paloma Co., Ltd.
CONTENTS HOUSEHOLDER - We recommend you read pages 4 to 13. The other pages are intended for the installer but may be of interest. About Your Water Heater ............................................................................................................ 4 Water Supplies........................................................................................................................... 10 Save A Service Call ...................................................................................
ABOUT YOUR WATER HEATER WATER HEATER APPLICATION This water heater is designed for use in a single family domestic dwelling for the purpose of heating potable water. Its use in an application other than this may shorten its life. MODEL TYPE ® The Vulcan continuous flow water heater model you have chosen is for outdoor installation only. This water heater has been installed as an in-series gas booster to a solar water heater.
ABOUT YOUR WATER HEATER HOW HOT SHOULD THE WATER BE? The solar water heater will deliver water at temperatures up to 70°C to 80°C for a Vulcan solar direct or indirect pumped system and possibly higher for some other models of solar water heaters. During periods of low solar energy gain, the in-series gas booster will boost the water temperature automatically to its preset outlet temperature setting. The factory preset outlet temperature setting is 60°C.
ABOUT YOUR WATER HEATER WARNING This water heater is only intended to be operated by persons who have the experience or the knowledge and the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical, sensory or mental capabilities i.e. the infirm, or by children. Children should be supervised to ensure they do not interfere with the water heater. The water heater uses 240 Volt AC electrical power for operation of the control systems and the combustion fan.
ABOUT YOUR WATER HEATER GENERAL MAINTENANCE The jacket of the water heater can be cleaned with a soft cloth and warm mild soapy water. Under no circumstances should abrasive materials or powders be used. The area around the water heater can be sprayed with insecticide to rid the area of insects. Insects encroaching into or nesting in the water heater can interfere with the operation of the water heater and also damage components.
ABOUT YOUR WATER HEATER CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Vulcan 244 627 model continuous flow water heater can be installed as part of a circulated hot water flow and return system in a building. Refer to “Circulated Hot Water Flow and Return System” on page 19 for further information and notes on this type of installation. GOING ON HOLIDAYS If you are going on holidays, it is not necessary to turn the water heater off.
ABOUT YOUR WATER HEATER DRAINING THE WATER HEATER Turn off the water heater (refer to “Turn Off The Water Heater” on page 8). Open a hot tap (preferably the shower outlet). Unscrew the two drain plugs, one each at the solar heated water inlet and hot water outlet, on the underside of the water heater. Water will drain from the water heater. When water stops flowing from the water heater, close the hot tap.
WATER SUPPLIES This water heater must be installed in accordance with this advice to be covered by the Vulcan warranty. This water heater is manufactured to suit the water conditions of most public reticulated water supplies. However, there are some known water chemistries which can have detrimental effects on the water heater and its operation and / or life expectancy. If you are unsure of your water chemistry, you may be able to obtain information from your local water supply authority.
SAVE A SERVICE CALL Check the items below before making a service call. You will be charged for attending to any condition or fault, which is not related to manufacture or failure of a part (refer to “Terms of the Vulcan Warranty” on page 31). COLD WATER FROM THE HOT TAP Close the hot tap, wait 10 seconds and open the hot tap again. Is the hot tap open enough? The burners will not light if the flow rate is less than 2.0 L / min.
SAVE A SERVICE CALL GAS BOOSTER OPERATING TOO FREQUENTLY You may find that the in-series gas booster operates more frequently than expected. This will occur when the solar heated water temperature is lower than 58°C, which may be experienced during periods of low solar energy gain or if there has been heavy hot water usage.
SAVE A SERVICE CALL CLOUDS OF WHITE ‘VAPOUR’ FROM THE FLUE TERMINAL During the heating cycle, it is not unusual to see water vapour clouds steaming from the flue terminal, particularly on cold days. This is normal operation of the water heater. PRESSURE RELIEF VALVE DISCHARGING A pressure relief valve is incorporated into the water heater controls. This valve protects the water heater, by allowing water to escape, in the event of excessive pressure build up in the waterways.
INSTALLATION – WATER HEATER THIS WATER HEATER IS FOR OUTDOOR INSTALLATION ONLY. THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING. Check the water heater is suitable for the gas type available. (refer to the rating label on the water heater) INSTALLATION STANDARDS The water heater must be installed: by a qualified person, and in accordance with the installation instructions, and in compliance with Standards AS/NZS 3500.4, AS 5601 or AS/NZS 5601.
INSTALLATION – WATER HEATER This water heater must be installed vertically upright with the water, gas and power connections on the underside, pointing toward the ground. The back of the water heater can be either against a wall or supported by a frame. Note: The water heater must be well secured to the wall or frame using two fasteners each at the top and bottom of the unit (refer to page 20 for mounting hole positions and weight of the water heater).
INSTALLATION – WATER HEATER RECESS INSTALLATION The water heater can be installed recessed into a wall. A recess box (PN 299831) is available for such an installation. Refer to the installation instructions which accompany the recess box kit for information on its installation. An additional rating label is supplied attached to the inside of the front cover of the water heater. This is for a service person to access the water heater details when required.
INSTALLATION – WATER HEATER HOT WATER DELIVERY This water heater can deliver water at temperatures which can cause scalding. It is necessary and we recommend that a temperature limiting device be fitted between the water heater and the hot water outlets in any ablution and public areas such as a bathroom, ensuite or public amenities, to reduce the risk of scalding.
INSTALLATION – WATER HEATER from solar storage tank to solar storage tank In-series Gas Booster as part of an Open Circuit Direct Solar Water Heater Installation Two Temperature Zones Using a Temperature Limiting Device LEGEND from solar storage tank to solar storage tank In-series Gas Booster as part of a Closed Circuit Indirect Solar Water Heater Installation Two Temperature Zones Using a Temperature Limiting Device LEGEND 18
INSTALLATION – WATER HEATER CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A Vulcan 244 627 in-series gas booster can be installed as part of a circulated hot water flow and return system in a building.
INSTALLATION – WATER HEATER DIMENSIONS AND TECHNICAL DATA Model 244 627 Rated delivery (@ 40°C rise) litres / min 16.7 Recovery (@ 25°C rise) litres / min 27 kg 24 Mass Empty (unpackaged) Hourly Gas Consumption (MJ) Min Gas Pressure (kPa) minimum maximum Max Gas Pressure (kPa) Model 627 627 627 627 627 Natural Propane 205 205 1.13 2.75 0.193 0.277 0.905 1.540 3.50 3.50 Gas Details Test Point Gas Pressure (kPa) Model numbers: N = Natural, P = Propane.
INSTALLATION – WATER HEATER TYPICAL INSTALLATION – OUTDOOR LOCATION 21
CONNECTIONS – PLUMBING All plumbing work must be carried out by a qualified person and in compliance with the Standard AS/NZS 3500.4 and all local codes and regulatory authority requirements. All gas work must be carried out by a qualified person and in compliance with the Standard AS 5601 or AS/NZS 5601.1, as applicable under local regulations, and all local codes and regulatory authority requirements.
CONNECTIONS – PLUMBING PIPE SIZES The pipe sizing for hot water supply systems should be carried out by persons competent to do so, choosing the most suitable pipe size to ensure adequate flow for each individual application. Reference to the technical specifications of the water heater and local regulatory authority requirements must be made.
CONNECTIONS – ELECTRICAL All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the Wiring Rules AS/NZS 3000 and all local codes and regulatory authority requirements. Warning: Temperature controllers must not be fitted to this water heater as part of a solar water heater system because water at a temperature much higher than the controller setting can be delivered. The water heater is supplied with a 1.
COMMISSIONING All water heaters are tested and adjusted before dispatch from the factory, however further adjustments may become necessary because of local conditions. TO TURN ON THE WATER HEATER Open all of the hot taps in the house (don‟t forget the shower). Open the cold water isolation valve fully at the inlet to the solar water heater. Open the solar heated water isolation valve fully at the inlet to the in-series gas booster. Air will be forced out of the taps.
COMMISSIONING Gas Inlet Test Point Pressure To check the gas inlet pressure: 1. Close any hot taps and ensure the burners are not operating. 2. Close the gas isolation valve at the gas inlet to the water heater. 3. Locate the gas inlet test point on the gas connection to the water heater. 4. 5. Remove the test point screw and washer from the test point orifice. Connect the manometer. Open the gas isolation valve fully at the gas inlet to the water heater.
COMMISSIONING BURNER GAS PRESSURE It is necessary to check the burner gas pressure at both the minimum and maximum operational settings. To check and if necessary adjust the operational gas pressures, the electrical supply to the water heater must be switched on, the burners ignited and hot water must be flowing from a hot tap. Warning: The removal of the front panel will expose 240 volt wiring. Take care not to touch wiring terminals.
COMMISSIONING Notes: If the burners extinguish and error code 11 or 12 starts to flash on the LED display: release the MIN and adjuster buttons close the hot tap clear the error code (refer to “Clearing Error Code” on page 28) recommence the procedure from Step 8. If the adjuster button is released before Step 13, clear any error code (if displayed) and recommence the procedure from Step 8.
COMMISSIONING TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING The temperature settings will be displayed on the LED display. The preset outlet temperature settings are: 244 series 38°C, 40°C, 42°C, 43°C, 45°C, 50°C, 55°C, 60°C, 70°C, 75°C It is necessary to have the electrical supply to the water heater switched on during stages of checking or adjusting the preset outlet temperature setting procedure. Warning: The removal of the front panel will expose 240 volt wiring.
COMMISSIONING TO TURN OFF THE WATER HEATER If it is necessary to turn off the water heater on completion of the installation, such as on a building site or where the premises is vacant, then: Switch off the electrical supply at the power outlet to the water heater (refer to note below). Close the gas isolation valve at the inlet to the water heater Close the solar heated water isolation valve at the inlet to the water heater.
VULCAN CONTINUOUS FLOW GAS WATER HEATER WARRANTY - AUSTRALIA ONLY CONTINUOUS FLOW GAS WATER HEATER 244 627 MODELS 1. THE VULCAN WARRANTY – GENERAL 1.1 This warranty is given by Rheem Australia Pty Limited ABN 21 098 823 511 of 1 Alan Street, Rydalmere New South Wales, the supplier of Vulcan continuous flow gas water heaters, manufactured by Paloma Co., Ltd., a world leader in water heater technology and manufacture. 1.
VULCAN CONTINUOUS FLOW GAS WATER HEATER WARRANTY - AUSTRALIA ONLY CONTINUOUS FLOW GAS WATER HEATER 244 627 MODELS 3. WHAT IS COVERED BY THE VULCAN WARRANTY FOR THE WATER HEATERS DETAILED IN THIS DOCUMENT 3.
