F. OVERFLOW / VENT
CONNECTION IMPORTANCE
Connect a 15 mm (½”) pipe to the
overflow/vent connection (½”BSP nipple).
This pipe is to be made of a material such
that continuous steam will not degrade it
(i.e. copper). This pipe must have a
continuous fall, not exceeding 3 metres in
length and / or contain no more than 4
bends (refer to figure 2).
Figure 1: Water Connection
If the site situation requires a pipe length
exceeding 3 metres, then discharge the
overflow/drain into a tundish.
The drain pipe work must not exert a pressure of
more than 1 metre of head on the Lazer boiling
unit (refer to figure 2).
During normal operation of the Lazer, the
overflow/vent connection may discharge small
quantities of steam and condensate, so it is
ESSENTIAL that the drain pipe is attached to
the overflow vent connection. This drain pipe
must discharge to waste at a point where no
scald injury, nuisance nor inconvenience is
caused to people in the immediate vicinity.
WARNINGS:
Ensure the overflow/vent line remains open
because the Lazer’s tank is not designed to be
pressurised. Where freezing may occur, protect
the pipes and install an air break. It is
recommended to install an air break in the
overflow/vent drain line, no more than 300 mm
from the Lazer unit. Also it is important to
connect the overflow/vent and water inlet
correctly. Incorrect connection of pipe work may
damage the unit.
G. DRAIN
WARNING:
Before draining the unit, ensure the
appliance has been switched off, and
water is not hot enough to scald.
To drain 3-10L models, turn unit off and open
tap until no water flows out. Remove unit from
wall and tip over with tap open until unit is
empty. For 15-40L units a drain plug is
accessible from the bottom of the unit (note
switch unit off before draining).
IMPORTANT
Installation and maintenance of the Lazer Boiling Water unit
shall be carried out by a qualified service person.
Your closest Rheem Service Centre can be contacted by
telephoning 0800 657 335
4.
Press
(
Accept
)
button
to
confirm
selection and the display reverts to the
main menu. The unit will go into “Sleep”
mode if it has
not
been used for the
“Sleep Delay Time” period. The screen
will display “Auto-Off Press Any Key to
Heat”. To exit “Sleep”, push any Timer
key
or the tap lever. If you activate Sleep
Delay Time we recommend that you also
activate Temp Show On/ Off function.
E) Filter Life
The Filter Life is factory set to OFF as the
default setting.
Select the Appropriate Filter Mode
i. Remaining Life
ii. Filter Reset
i)
To Select
Remaining Life
mode
(Prog>
Filter Life
>Accept>
Remaining Life
)
Display Shows
: “Remaining Life”
“XXXX litres“
Press the (
Cancel
) or (
Accept
) button to
revert back to the main menu.
ii)
To Select the
Filter Rese
t mode
(Prog >
Filter Life
> Accept >
Filter Reset
> Accept)
Display Shows
: “Filter Reset”
.
Press the (
Accept
) button to confirm
selection at which time you are prompted
“Are you sure?”. Press (
Accept
) once
more and
Display Shows
: “Set Filter Life”
“OFF” or “XXXX litres”.
Pressing (
UP
) button changes the filter
count in 1000 litres increments. to a
maximum value of 14000 Litres. Press
the (
Accept
) button to confirm selection.
F) Service Menu
Select Appropriate Service Mode
i.
Error Codes
ii.
Boiling Temp
iii.
Calib Reset
iv.
Temp. Override
v.
Software Version
vi.
Temp Show ON/OFF
vii.
TB Treq
i)
Error Codes
(Prog>
Service
>Accept>
Error Codes
)
This function allows easy identification of
problems occurring with the unit by service
technicians (see details on page 10 – Product
error codes).
ii)
Boiling Unit Display Temp
(Prog>
Service
>Accept>
Boiling Temp
)
Display Shows
: “XXX ˚C“
This function displays the current hot water
temperature. Press (
Cancel
) button to revert
back to the main menu.
iii)
Calibration Reset
(Prog>
Service
>Accept>
Calib.Reset>
Accept)
Display Shows
: “Calib. Reset“
This function recalibrates the boiling water unit
to boiling point.
Press the (
Accept
) button to
recalibrate the boiling point.
Press
(Accept)
again at the “Are You Sure” prompt. Press the
(
Cancel
) button to revert back to the Main
menu. The timer will now display
“Calibrating
Do Not Interrupt”.
When calibration is complete
the timer display reverts back to the main menu.
iv) Temp. Override
(Prog>Service>Accept>Temp.Override>Accept)
This function allows to perform a fast unit
calibration or to set the water temperature
between 70
⁰
C and 99
⁰
C in 1
⁰
C increments.
v)
Software Version
(Prog>
Service
>Accept>
Software
Version>
Accept)
This displays the Timer (first line) and Controller
(second line) software versions.
vi)
Temp Show On/Off
(Prog>
Service
>Accept>
TempShow ON/OFF
)
This function allows the temperature of the water
within the unit to be displayed permanently on
the screen. Press the (
Accept
) button to confirm
selection and the display reverts to the main
menu.
vii)
TB Treq
(Prog>
Service
>Accept>TB Treq)
This function shows the user what temperature
the unit calibrated to. Under the letters
TB
the
boiling calibration temperature is displayed.
Under the letters
Treq
the temperature the unit
will maintain the water to is displayed.
9.
