Hot Water Brochure 2021

Install discharge
pipework from 6 bar
PRV to terminate into a
drain point of safety
(see
Fig 2)
. Fit discharge
tundish if required.
1
5
2
6
3
7
4
8
ANDRIS RANGE  WHICH KIT DO YOU NEED? ANDRIS RANGE  HOW EASY IS IT TO INSTALL?
ANDRIS RANGE  INSTALLATION
In order to fit an Andris R, Andris Lux or Andris Lux Eco, it is good practice and sometimes
mandatory to install one or several kits. Please use the following chart as a guide:
Is the unit
over
15 litres?
Is the mains
pressure > 3.5 bar?
Is the mains
pressure > 3.5 bar?
Is the mains
pressure > 3.5 bar?
Install
Kit A
Kit B
Kit C
Install
Kit A
Kit B
Kit C
Install
Kit A
Kit B
Kit C
Install
Kit A
Kit C
Install
Kit A
Kit C
Install
Kit C
Will the inlet pipework accommodate the expanded
water without hot water entering any supply pipe
connected to the cold tap/draw-o?
YES YES YES
YESNOYES
NO NO NO
Does the supply pipework contain any
check valves, stop taps with loose jumpers
or devices that prevent reverse flow?
recommended
YES NO
NO
Fixed grating
Trapped
gulley
Metal discharge pipe (D2)
from tundish with continuous fall.
Min. 300mm
Temperature &
Pressure Relief Valve
Metal discharge pipe (D1) from
Temperature & Pressure Relief
Valve to tundish.
Max. 600mm
Tundish
O I
KIT A - Expansion Vessel
(Charge set at 3.5 bar)
Pressure Relief
Valve (6 bar)
Dielectric Junctions
(must be fitted)
KIT B - Pressure
Reducing Valve
(set at 3.5 bar)
Nearest cold
water draw-off
Discharge
Kit A -
Non-return Valve
Supply to other parts
of plumbing system
2.8m (10L) OR 4.2m (15L) OF 15mm PIPE IS
REQUIRED FOR EXPANSION
Isolating Valve
(fixed jumper or 1/4 )
Cold water
mains
FIG 1
FIG 2
(Applicable to 30L units only)
Connect cold pipework
if required. Fit pressure
reducing valve and
expansion vessel.
Turn on mains water.
Unit is ready for use.
Connect 13A electrical
supply to appliance.
Mount the unit
on the wall using
hanging bracket.
Fit dielectic junctions
to inlet and outlet
water connections.
Fit 6 bar pressure
relief valve and
connect cold water
supply
(see Fig 1) .
Then connect hot
water supply.
Unpack appliance,
read instructions and
check fittings are
present.
The expansion vessel
prevents any build-up
of pressure within the
domestic hot water
system, while the
non-return valve stops
any backflow of hot
water into the cold
water main.
PRODUCT CODE: 406801
The maximum cold
water inlet pressure
designed for the
Andris unit is 3.5
bar. Therefore, this
pressure reducing
valve controls the
water to not exceed
this limit.
PRODUCT CODE: 406802
KIT A
KIT B KIT C
2L Expansion Vessel &
Non-return Valve
3.5 Bar Pressure
Reducing Valve
Discharge
Tundish
In the event the hot
water system over
pressurises, water is
discharged via the
6 bar pressure relief
valve and the tundish
visually indicates a
discharge is occuring.
PRODUCT CODE: 406807
ANDRIS RANGE  INSTALLATION KITS
Pipe details 10 Litre 15 Litre
Length of Ø 15mm pipe 2.8m 4.2m
Length of Ø 22mm pipe 1.5m 2.2m
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