ACV E-tech S 160, E-tech S 240, E-tech S 290, E-tech S 380 INSTALLATION OPERATING AND SERVICING INSTRUCTIONS
03/02/2005 - 66401700.A
excellence in hot water
Installation, Operating and
Servicing Instructions
E-tech S 160 / 240 / 290 / 380
1
PEOPLE WHO SHOULD READ
THESE INSTRUCTIONS
These instructions are intended for:
- specifying engineers
- the installing engineers
- end-users
- servicing engineers
SYMBOLS
The following symbols are used in these instructions:
Essential instruction for operating the system
correctly.
Essential instruction for personal safety or
environmental protection
Danger of electrocution.
Risk of scalding.
WARNINGS
These instructions are an integral part of the equipment to which
they refer and must be supplied to the user.
The product must be installed and serviced by qualified engineers,
in compliance with the prevailing standards.
ACV accepts no liability for any damage resulting from incorrect
installation or from the use of components or fittings not specified by
ACV.
Failure to observe instructions regarding tests and
test procedures can result in personal injury or
pollution risks.
Note:
ACV reserves the right to modify the technical specifications and
components of its products without prior notice.
INDEX INTRODUCTION
INTRODUCTION 1
People who should read these instructions 1
Symbols 1
Warnings 1
DESCRIPTION 2
Overview 2
Operating principle 2
Construction features 2
TECHNICAL SPECIFICATIONS 4
Dimensions 4
General features 4
Maximum operating conditions 5
Domestic hot water performances 5
INSTALLATION 6
Boiler room 6
Heating connection 6
Domestic hot water connection 7
Controller kits 7
Electrical connections 8
COMMISSIONING 12
Filling the domestic hot water and heating circuits 12
ENTRETIEN 13
Service intervals 13
Servicing the boiler 13
Servicing the safety devices 13
Boiler draining 13
Spare parts 13
USER GUIDE 14
Using the boiler 14
Boiler shutdown 15
NOTE 16
OVERVIEW
• Combination boiler (central heating and domestic hot water).
•TANK-IN-TANK indirect storage type domestic hot water production.
• The central heating connections are designed so that they can be
connected in all three directions, this means that the boiler can be
installed against a wall or in a corner without having to leave any
free space
(see page 6).
• Internal two-stage temperature control thermostat, which allows
the power to be adapted according to actual heat requirements.
• The boiler is fitted with expansion tanks, a safety valve, a
mano-thermometer, a water low safety device
(pressure switch) and
a circulation pump.
OPERATING PRINCIPLE
The TANK-IN-TANK concept
The Etech’s series differs from traditional hot water producers in that
it has a tank immersed in the primary fluid contained in the outer
body. When there is a temperature drop in the boiler because the
central heating system or the domestic hot water circuit needs hot
water, the internal thermostat starts up the power on the immersed
electrical resistors. The heating elements quickly heat up the primary
fluid, thus creating a natural circulation around the tank.
Indirectly heating domestic hot water
This circulation allows easier heat exchange between the primary
fluid and the domestic water, all over the tank surface.The corrugations
on the outer shell of the tank increase the area of heat exchange still
further and thus speed up the process of heating the domestic
water.
Easy to set
With a single command, the water temperature of both the primary
circuit and the domestic hot water circuit can be set by the adjustable
thermostat situated underneath the tank in the primary circuit.
2
DESCRIPTION
CONSTRUCTION FEAURES
Outer body
The outer body containing the primary fluid is made of thick STW 22
steel.
TANK-IN-TANK type exchanger accumulator
The ring-shaped inner tank with its large heating surface for
producing domestic hot water is built of Chrome/Nickel 18/10
stainless steel. It is corrugated ocer its full height by an exclusive
production process and entirely argon arc welded by the TIG
(Tungsten Inert Gas) method.
Isulation
The boiler body is fully insulated by rigid polyurethane foam, with a
thickness of 70mm, with a high thermal insulation coefficient. This is
sprayed onto the tank without using any CFCs.
Casing
The boiler is covered by a steel jacket which has been scoured and
phosphated before being stove enamelled at 220 °C.
Heating elements
nding on the model, the boiler is fitted with either six or seven
etachable stainless steel AISI 304L immersion heaters.
Controller
Control
thermostat
ON/OFF
switch
Power
selection
switch
Summer/Winter
selector switch
Combined temperature
and pressure gauge
Power
selection
switch
Safety
indicator
light
Safety
thermostat
Control panel
3
DESCRIPTION
Domestic hot
water return
Domestic hot
water outlet
Insulation
Central heating
flow pipe
Primary
expansion
vessel
Tank-in-Tank
heat exchanger
Drain cock
Control thermostat
Primary circuit
Primary
safety valve
Domestic cold
water inlet
Heating return
Low water
pressure switch
Heating resistors
4
DIMENSIONS
The units are delivered fully assembled, tested and packed on a timber base with shockproof edges and protected by heat-shrunk plastic film.
On reception and after unpacking, check the equipment for domage. For transport purposes, refer to the weight and dimensions give below.
TECHNICAL SPECIFICATIONS
I J
KK
H
L
E-tech S 160 E-tech S 240 E-tech S 290 E-tech S 290 E-tech S 380 E-tech S 380
single phase tri phase mono phase tri phase
Output kW 14.4 14.4 14.4 28.8 14.4 28.8
Operating voltage Volt 230 230 230 3 x 400 + N 230 3 x 400 + N
Total capacity L 161 242 295 295 394 394
Primary circuit capacity L 55 68 97 97 127 127
Central heating connections Ø 1” 1” 1” 1” 1” 1”
Domestic hot water connections Ø 3/4” 3/4” 1” 1” 1 1/2” 1 1/2”
Hot water tank exchange surface m
2
1.26 1.87 2.0 2.0 2.6 2.6
Weight when empty kg 115 155 202 202 230 230
Domestic hot water max. pressure bar 10 10 10 10 10 10
Central heating max. pressure bar 333333
Expansion tank 1 x 8 L 1 x 8 L 2 x 8 L 2 x 8 L 2 x 8 L 2 x 8 L
Max. T° setting °C 85 85 85 85 85 85
A mm B mm C mm D mm E mm F mm G mm H mm I mm J mm K mm L mm
160 1432 620 720 1282 290 43 265 405 310 127 180 126
240 1953 620 720 1800 290 43 265 405 310 127 180 126
290 1784 720 800 1627 300 92 265 435 360 94 135 96
380 2134 720 800 1985 300 92 265 435 360 94 135 96
GENERAL FEATURES
GF
A
D
E
B C
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