STIEBEL ELTRON SH A 02.07.2002 - 28.02.2009 - Manual (Page 11)

11
English
2. Installation instructions
for the qualified installer
2.1 Layout of the unit A
1 Temperature selection button
2 Signal lamp for operating mode display
3 Hot water indicator
4 Heating element
5 Anode
7 Regulator-limiter combination
6 Reset button for safety temperature
limiter (actuation from the front)
8 Sealing ring
9 Draining nozzle G ½
10 Connection nozzle G ½
11 Cable aperture PG 21 for electrical
connection
12 Inflow
13 Outflow pipe
14 Suspension bracket, top
15 Suspension bracket, bottom
(with SH 120 A and SH 150 A)
See "2.9 for Accessories":
– Hanging bracket end covers
– universal mounting bracket
– fixing for wall mounting
* Screw diameter
2.2 Regulations and
provisions
! The installation (water and electrical
installation) and first start-up, as well as the
maintenance of this unit may only be
carried out by an approved specialist
installer in accordance with these
Instructions.
! Perfect function and operational safety are
only guaranteed with original accessories
and spare parts intended for the unit.
! Provisions of the local energy supply utility
company.
! Provisions of the water supply utility
company responsible.
The following are also to be respected:
! The unit rating plate
! Technical data
! Water installation
Pipe material:
– Cold water pipe – Hot water pipe
Copper pipe Copper pipe
Steel pipe Steel or copper pipe
Plastic pipe systems:
Installation also in conjunction with
DVGW-tested plastic pipe system for
cold-water and hot-water pipe systems.
# Electrical installation
– Electrical connection only with fixed-laid
leads in association with removable
cable bushings.
– The unit must be capable of all-pole
disconnection from the mains, for
example by fuses, with an isolating
distance of at least 3 mm.
2.3 Installation location
# Install in a vertical position; see A .
# In an area not subject to the risk of
freezing.
# Install close to the water tap.
2.4 Unit installation
# Fit the suspension bracket; see C .
Select the securing material to suit the
strength of the wall. With SH 120 A and
SH 150 A, two suspension brackets are
required.
Any unevenness in the wall is to be
compensated for by the spacer elements
C provided (a. approx. 5 mm thick).
# If the unit is to be mounted on an uneven
wall using the existing hanging bracket, it
will be necessary to use a universal wall
mounting bracket (see "2.9 Accessories").
2.5 Water connection
Unvented (pressurized) for the supply
of several draw-off points.
#
Install the type-tested safety groups E
KV 30, Order No. 00 08 26, up to
0.48 MPa water pipe pressure
KV 40, Order No. 00 08 28, up to 1 MPa
water pipe pressure
a Safety valve
b Backflow preventer
c Test valve
d Throughflow isolating valve (choke)
e Pressure reducer (with KV 40)
f Test nozzle for pressure gauge
g Thermostat fitting TA 260
E
Order No. 00 34 66 (order
separately), also possible in conjunction
with KV 40.
# Establish dimensions for the outflow pipe
for a fully-opened safety valve. The drain
aperture of the safety valve must remain
open to the atmosphere.
# The drain for the safety group is to be
installed with a constant downwards
inclination.
# The information provided in the
Installation Instructions for the safety
group are to be respected.
# Set a maximum flow rate of 18 l/min at
the choke of the safety group.
2.6 Electrical connection
# Draw out the temperature selection
button, release the screws, and take off
the under-cap
F .
# Prepare the connection pipe G .
# The output required is to be connected in
accordance with the connection examples.
$ SH ... A with 2 and 3 kW
heating flange
(rating see
ratingplate)
" Electric wiring diagram Electric wiring diagram Electric wiring diagram Electric wiring diagram Electric wiring diagram J
a Thermostat
b safety thermal cut-out
" Electrical connection K
a Secure „N“ with a fuse dependent
upon setting up regulations
$
SH ... A with 3.9 kW heating
flange
(rating see ratingplate)
" Electric wiring diagram Electric wiring diagram Electric wiring diagram Electric wiring diagram Electric wiring diagram L
a Thermostat
b safety thermal cut-out
" Electrical connection M
a Secure „N“ with a fuse dependent
upon setting up regulations.
After the electrical connection the box
corresponding to the connected
current and voltage is to be filled in on
the unit rating plate with the aid of a
ballpoint pen.
# Fit temperature selection button and
under-cap
F .
2.7 First start-up
(may only be carried out by a qualified
installer)
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Fill the unit, bleed it, and flush it
through thoroughly.
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Turn the temperature selection
button to the right as far as the
stop.
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Switch on the mains voltage.
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Check the mode of operation of
the unit.
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Check the safety group for
functional performance.
Note:
– At temperatures of below -15 °C (e.g.
transport/storage) the safety temperature
limiter may trip; press the reset button
( A 6).
Handing over the unit:
Explain the function of the unit to the users
and familiarise them with its use.
Important notes:
! Advise the users about possible hazards
(such as scalding).
! Hand over these Operating and
Installation Instructions for safekeeping. All
the information provided in these
Instructions must be followed carefully.
These Instructions provide details about
safety, operation, installation, and the
maintenance of the unit.