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Normal Operation: When hot water is being used, cold
water enters the bottom of the heater (either bottom feed or
by diptube), and the bottom element will begin to heat the
cold water. If lots of hot water has been used, the upper
thermostat will take priority and the top portion of the heater
will be heated. Once heated, the thermostat will flip down to
the lower thermostat to heat the lower portion.
WARNING
Do not supply power to this water heater
until you have verified that the unit is com-
pletely filled with water.
To ensure that the water heater is full of
water and that all the air has been purged
from the system, run all the hot water
faucets in the house continuously for three
(3) minutes.
Filling the Tank
NOTE: When filling, avoid water spillage. Do not allow the
insulation of the heater to get wet as water can cause elec-
trical malfunction.
1. Close the drain valve, and then open a hot water faucet.
2. Open the cold water supply valve.
3. When water runs out of the hot faucet, the tank is full.
4. Check the system for leaks.
Draining the Tank (completely)
If the power is to be turned off during the cold season and
the tank is exposed to freezing temperatures, the water
heater must be drained. Water will expand when it freezes
and can damage the heater.
Completely drain as follows:
1. Make sure the electrical supply to the water heater is
"OFF".
2. Turn off cold water supply.
3. Connect a garden hose to the end of the drain valve
and direct this to a point lower than the heater.
4. Open a hot water faucet.
5. Open the drain valve on the heater - drain, keeping the
drain valve open during the shutdown period.
6. To refill the heater, see "Filling the Tank" section.
Installation Check List
1.
Are the fuse and wire sizes correct?
2.
Is the certified relief valve installed?
3.
Are you sure that in case of water leakage, the
building, furniture, carpeting or other property
will not be damaged?
4.
Has the relief valve been piped to a suitable
drain point?
5.
Is the relief valve discharge unobstructed?
6.
Is the heater completely filled with water?
7.
Is the cold supply valve open?
If the answers to the above are "Yes", turn on the
power and enjoy all the hot water you need, all
the time.
IV) OPERATION
Temperature Adjustment
There is a hot water scald potential if the
thermostat is set too high.
The National Plumbing code requires that the temperature
of residential electric service water heaters be set at 60°C
(140°F) (Canada), 49°C (120°F) (U.S.A.). The maximum
outlet temperature of some bath fixtures must be tempered
to 49°C (120°F) to reduce risk of scalding. Higher tempera-
tures increase the risk of scalding. The thermostats operate
automatically. They can be adjusted to provide warmer or
cooler water temperature. Set both thermostats to the
SAME setting (if applicable).
If water temperature adjustment is required:
1. Turn the electrical supply to the water heater "OFF".
2. Remove the access door(s) and insulation pad(s).
3. Check with a voltage tester at terminal 1 and 3 of the
limit control that power is indeed "OFF".
4. Adjust the thermostat(s) to the water temperature
desired (if a two-thermostat system exists, set both ther-
mostats at the same temperature).
5. Ensure insulation pad is in the door cavity. Replace
access door(s).
6. Turn the electrical supply to the water heater "ON".
Water
Temperature
44°C (110°F)
47°C (116°F)
47°C (116°F)
50°C (122°F)
55°C (131°F)
60°C (140°F)
65°C (149°F)
68°C (154°F)
(U.S. Government Memorandum, C.P.S.C., Peter L.
Armstrong, Sept. 15,1978)
Check Here
Temperature Limit Control
For safety, a non-adjustable high limit temperature switch
will shut off the power when excessive water temperatures
are reached. This switch must be re-set manually. See
"Trouble-Shooting" section.
V) MAINTENANCE
Temperature & Pressure Relief Valve
Manually operate the temperature and pressure relief valve
at least once a year to make sure it is working properly and
that there are no blockages. To prevent water damage, the
valve must be properly connected to a discharge line that
terminates at an adequate drain. Standing clear of the
– 5 –
WARNING:
Risk of scalding
Time for Permanent
Time for 1st Degree
Burn (Less Severe
Degree (Most Severe
Burns)
(normal shower
temp.)
(pain threshold)
35 minutes
1 minute
5 seconds
2 seconds
1 second
instantaneous
Burns 2nd & 3rd
Burns)
45 minutes
5 minutes
25 seconds
5 seconds
2 seconds
1 second
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