Rheem 316937A - Manual (Page 9)

For rear entry connection on 3-10 Litre
models, we recommend that you use a
braided flexible hose with a 90
° elbow
for ease of connection.
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 131 031
4.
Display Shows: “SUN” “7:00 – 7:00”
“Set OFF hour”.
F) To Service Menu
Select Appropriate Service Mode
Press the (UP) button until the desired
hour appears on the screen and press
the (Accept) button to confirm
selection. i. Error Codes
ii. Boiling Temp
iii. Chiller Temp
iv. Calib Reset
v. Software Version
Display Shows: “SUN” “7:00 – 7:00”
“Set OFF Minute”.
vi. Temp Show ON/OFF
i) Product Error Codes Press the (UP) button until the desired
minute appears on the screen and
press the (Accept) button to confirm
selection and advance to the next day.
Display Shows: “MON” “7:30 – 15:30”
“Set ON hour”.
This function allows easy identification of
problems occurring with the unit by service
technicians.
(Prog>Service>Accept>Error Codes)
ii) For Boiling Unit Display Temp mode
Note: Continue with same procedure for
Monday through to Saturday. (Prog>Service>Accept>Boiling Temp)
Display Shows: “XXX ˚C“
This function displays the current hot water
temperature.
E) Filter Life
Select the Appropriate Filter Mode
Press the (Cancel) button to revert back to
the main menu.
i. Remaining Life
ii. Filter Reset
iii) For Chiller Unit Display Temp Mode
iii. Filter Life
(NOT USED ON LAZER PRODUCTS)
i) To Select Remaining Life mode
(Prog>Service>Accept>Chiller Temp)
(Prog>Filter Life>Accept>Remaining
Life)
Display Shows: “XXX ˚C“
Press the (Cancel) button to revert back to
the main menu.
Display Shows: “Remaining Life”
“XXXX litres“
iv) For Calibration Reset mode
Press the (Cancel) or (Accept) button
to revert back to the main menu.
(Prog>Service>Accept>Calib.Reset>Accept)
Display Shows: “Calib. Reset“
ii) To Select the Filter Reset mode
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.
(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 reset the filter and
to return to the Filter Life Menu.
v) To Display the Software Version
(Prog>Service>Accept>Software
Version>Accept)
iii) To Select the Filter Life mode
vi) Temp Show On/Off
(Prog> Filter Life >Accept>Set Filter
Life>Accept)
(Prog>Service>Accept>TempShow
ON/OFF)
Display Shows: “Set Filter Life”
“5000 Litres”.
This function allows the temperature of the
water within the boiling water unit to be
displayed permanently on the screen.
Pressing the (UP) button increases the
5000 litres value in increments of 500
litres to a maximum value of 12000
litres. Press the (Accept) button to
confirm selection and the display reverts
to the Filter menu.
Press the (Accept) button to confirm
selection and the display reverts to the
main menu.
9.