Service manual

TM014 Rheem Heavy Duty Electric Service Instructions REV: A
Date of Issue: 10/7/2002
3
HEATER MODEL IDENTIFICATION
All identification numbers are designed to convey detailed information about the water heater to which it is
attached. The model number consists of 8 digits.
6 1 6 315 0 8
6 – Heavy Duty
1 – MEPS Compliant
0 – No Heating Units
3 – Three Heating Units
6 – Six Heating Units
Rated Capacity in Litres
No Reference – System Requirement
0 – Element Not fitted
7 – 3600w
8 – 4800w
9 – 6000w
Note: Model number, serial number and date of manufacture should be quoted in all correspondence.
SPECIFICATIONS
Model
Maximum Inlet
Pressure (kPa)
Water Connections
Series Capacity
Rated
Capacity
(Litres)
T & PR
Valve
Rating
(kPa)
With ECV
Without
ECV
T/stat
Setting
(ºC)
Inlet
Outlet
T&PR
T/stat
Type
Anode
Length
(mm)
613 060 50 1000 680 800 75 RP1¼/32 RP¾/20 485
613
616
340 315 1000 680 800 75 RP1¼/32 RP¾/20
Tradesperson
Adjustable
1400
HEAVY DUTY
610 340 340 1000 680 800 N/A RP1¼/32 RP¾/20 N/A 1400
OPERATION
The 613 and 616 series heavy duty electric water heaters are designed for connection to a 3 phase AC supply
incorporating a neutral.
On 3 element models the wiring is configured for one element and thermostat combination to be supplied
between each active conductor (phase) and neutral. On six element models the wiring is configured for two
element and thermostat combinations to be supplied between each active conductor (phase) and neutral.
Water temperature is maintained via the thermostat switching the active conductor to an electric immersion
element. The thermostat and corresponding element are mounted at intervals up the side of the cylinder.
As the water temperature within the cylinder falls the thermostat contacts close suppling power to the element.
Each element is switched on sequentially from the bottom up, as cold water enters the cylinder.
Once the water temperature reaches the set point of the thermostat, the contacts open cutting power to the
corresponding element.
A double pole “manual reset” over temperature cut out is incorporated into each thermostat to provide
additional protection in the event the controlling thermostat contacts fail. The ECO contacts open between
87ºC and 93ºC.