INSTALLATION GUIDE AND OWNER’S MANUAL AccuMix II™ ELECTRIC INSTANTANEOUS WATER HEATER WITH ASSE 1070 APPROVED MIXING VALVE
BEFORE ATTEMPTING ANY INSTALLATION, MODIFICATION OR SERVICE OF THIS HEATER, MAKE SURE THE ELECTRICAL POWER IS DISCONNECTED. Read and understand these instructions thoroughly before attempting the installation or service of this water heater. Failure to follow these instructions can result in serious injury, death and/or property damage. The warranty of this water heater will depend upon proper installation according to these instructions. Some heaters come supplied with separate faucet aerators.
(CANADIAN INSTALLATIONS ONLY) CONNECT ONLY TO A CIRCUIT PROTECTED BY A CLASS A GROUND FAULT CIRCUIT INTERRUPTER. ATTENTION: BRANCHER UNIQUEMENT À UN CIRCUIT PROTÉGÉ PAR UN DISJONCTEUR DE FUITE DE TERRE DE CLASSE A. (CANADIAN INSTALLATIONS ONLY) DO NOT INSTALL IN A BATH ENCLOSURE OR SHOWER STALL OR CONNECT TO A SALT-REGENERATED WATER SOFTENER OR A WATER SUPPLY OF SALT WATER.
1) MOUNTING THE UNIT TO THE WALL THIS HEATER MUST BE INSTALLED IN A LOCATION WHERE IT IS NOT SUBJECT TO FREEZING TEMPERATURES. 1. The heater should be mounted under the sink as close to the point-of-use as possible. Ideal position is fittings pointed down, but the heater can be mounted in any orientation. 2. Make sure to leave a minimum of 8 inches service 3. Remove the cover and fasten to the wall using the clearance at the end OPPOSITE the fittings. four mounting holes at each corner of the back plate.
2) PLUMBING HOOK-UP The heater is supplied with 3/8”brass compression fittings that are compatible with either copper or plastic pipes. Make sure these fittings are used for this installation. Contact your Eemax representative for further information. NEVER SUBSTITUTE THREADED PIPE FITTINGS USING PIPE DOPE OR TEFLON TAPE AND NEVER SOLDER ANY PIPE CONNECTIONS WHILE ATTACHED TO THIS HEATER BECAUSE DAMAGE TO THE HEATER WILL RESULT.
3. Remove the cover. Connect the pre-assembled inlet and outlet pipes to the heater (do not overtighten compression fittings) and fully open the inlet and outlet ball valves. Check the system for water leaks at all plumbing connections. If a leak is present at the compression fitting, slowly tighten compression nut until it stops – do not overtighten.
4. Open the hot water faucet and run water for minimum 60 seconds and until the flow is continuous and free of air pockets. Close the faucet and install the aerator (if supplied). Failure to install aerator (if supplied) will result in lowerthan-expected heater performance.
3) ELECTRICAL HOOK-UP BEFORE BEGINNING ANY WORK ON THIS INSTALLATION, BE SURE THAT THE ELECTRICAL BREAKER IS “OFF” AND THAT ALL MOUNTING AND PLUMBING WORK HAS BEEN COMPLETED PER THESE INSTRUCTIONS. This heater must have its own independent circuit using insulated, UL listed, 2 wire cable (2 wire plus ground) of the appropriate size suitable for up to 75°C and protected by the correctly rated circuit breaker.
2. The power leads are to be secured to the L1 and L2 or L and N connectors on the terminal block or relay. The ground lead is to be secured to the GND connector on the block or the green ground wire with the provided wire nut. FAILURE TO GROUND THE SYSTEM MAY RESULT IN SERIOUS INJURY, DEATH AND/OR PROPERTY DAMAGE. 3. Optional: The heater comes preset in silent mode. If silent mode is the intended use, please proceed to step 4.
4) COMMISSIONING THE HEATER BEFORE SWITCHING THE ELECTRICAL BREAKER “ON”, MAKE SURE THE INLET AND OUTLET BALL VALVES ARE FULLY OPEN AND WATER IS FLOWING THROUGH THE HOT WATER FAUCET FOR A MINUTE OR TWO UNTIL THE FLOW IS CONTINUOUS AND FREE FROM AIR POCKETS. DO NOT SWITCH THE BREAKER “ON” IF THERE IS A POSSIBILITY THE WATER IN THE HEATER IS FROZEN. 1. Make sure water is flowing through the faucet. 2. Switch “ON” the electric power supply at the breaker. 3.
Congratulations! Your Eemax tankless electric water heater is fully installed and ready for use! MAXIMUM TEMPERATURE RISE AT SPECIFIED FLOW RATE, °F 240VAC heaters used at 208VAC GPM GPM Model 0.5 1.0 1.5 0.5 1.0 1.
5) TROUBLESHOOTING CAUTION: Make certain power to unit is “OFF” before removing protective cover FOR ANY REASON. For status code details, please consult the table below. Code Name Possible causes Heater response F23 No heat - element failure - ECO tripped/malfunctioning - triac(s) failed open - relay/contactor malfunctioning - control board failure - inlet water supply out of spec Heating will be disabled after - measure element 30 seconds of continuous no resistance with the unit heat condition.
6) PERIODIC MAINTENANCE This heater is designed for many years of carefree use. In order to maintain consistent water flow, it may be necessary to periodically clean the faucet aerator or the filter screen located in the brass inlet fitting at the heater.
7) PART NUMBERS FOR FITTINGS, AERATORS AND AERATOR ADAPTORS COMPRESSION FITTINGS: 3/8" NUT 3/8" SLEEVE AERATORS: 0.5 GPM EX68B EX68C EX0061-0.
Notes: Eemax Inc., 400 Captain Neville Drive, Waterbury, CT 06705 Tel: 800-543-6163, 203-267-7890, Fax: 203-267-7975, email: support@eemaxinc.
