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  5. Installation Manual And Owner's Manual

Waiwela WET-12 T Installation Manual And Owner's Manual

Manual is about: TWO SERIES

Summary of WET-12 T

  • Page 1

    Electric instantaneous water heater installation guide and owners manual if you require any help or have any questions relating to the installation or performance of this heater, please call our technical service department tollfree : 1-800-543-6163. Have the information listed below before calling ...

  • Page 2

    General safety the “waiwela series two” heater is specifically designed to take in cold water and heat it to temperatures suitable for normal domestic usage up to a maximum of 125° f (52° c). To obtain optimum performance and energy savings, the unit should be located as near as possible to the poin...

  • Page 3

    Minimum - 8” clearance above unit 3 figure 1 mounting holes to independent circuit breaker serial # lug terminals at relays electrical hook-up 240v/208v l1 l2 l1 l2 ground lug factory installed jumpers from l1 –l1 and l2 – l2.

  • Page 4

    I. Mounting the unit 1) the unit should be mounted as close to the point of use as possible. For example, directly beneath the sink is ideal. Do not install the heater above a faucet or “point of use” because the siphoning effect may drain the heater which can cause premature element burn out. 2) th...

  • Page 5

    Ii. Plumbing hook-up 1) the unit is supplied with ¾’’ npt fittings (figure 3), use these. Do not use pipe dope and do not solder to the inlet or outlet. 2) take care to ensure that the pipes are correctly aligned with the inlet and outlet bosses in order to avoid excessive stress on the heater body ...

  • Page 6: Figure 5

    Iii. Electrical hook-up warning before beginning any work on the electrical installation, be sure the switch at main breaker panel is “off” to avoid any danger of electrical shock. “series-two” heaters are manufactured to the following specifications: this unit must have its own independent circuit,...

  • Page 7

    Important before switching “on” the power at the main circuit breaker panel make sure that the hot water circuit is free of air pockets or else premature failure of the element will occur. To do this open all hot water outlets one at a time for a minute or two until the water flow is continuous and ...

  • Page 8

    “tc and t2” models a) switch on the power to the unit, the power indicator light should illuminate. Note: this light should pulse on and off at first and after about 20- 30 seconds it should stay fully on. B) use the outlet ball valve to gradually reduce the water flow until the power indicator ligh...

  • Page 9

    Troubleshooting symptom “a”: no heat - indicator light off 1) electric supply is off turn on the main circuit breaker. 2) no or low water flow ensure that the minimum flow rate to switch on your heater is met. T, tc models – 0.75gpm t2 models – 1.5gpm p2 models – 1.5gpm also check that the inlet fil...

  • Page 10

    Inlet isolating valve- ball valve. (always leave fully open when unit is in service.) replacement heater core assembly ex1000 – 5.75kw @240v 7 - wire ex 100g 8 - wire ex 284 waiwela, 5350 joliet st. #2 denver, co 80239 tel: 1-800-543-6163 to appropriate circuit breaker 10 triac - ex 18 waiwela repla...

  • Page 11

    6 – wire + t/c ex 284 e l /l ( b l k ) e l e m e n t r in g t r ia c ( b l k ) r e l a y ( o r g ) t o e c o 7 - wire ex 100g e l /l 1 ( b l k ) e l e m e n t r in g t r ia c g a t e ( b l k ) p o w e r ( b l k ) l 1 f r o m r e l a y l in e s id e t /c ( b l u ) t /c ( b l u ) r e l a y ( o r g ) t...