Rotex GCU compact, Инструкция по установке и обслуживанию

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3 x Product description
ROTEX GCU compact -
9
Tab. 3-1 Legend from fig. 3-1 to fig. 3-6
3.2 Brief description
Die ROTEX Gas Combi Unit compact (GCU compact) is a fully
preassembled gas condenser unit., which is built into a water
storage tank. The excellent heat insulation properties of the
plastic storage tank ensure that heat losses are kept to a
minimum. The aluminium boiler body is inserted in a metal
housing in the cover of the storage tank. The complete flue gas
unit is surrounded by fresh air.
Operating mode
The ROTEX GCU compact is designed such that it can be
operated independently of the ambient air (concentric flue gas/air
inlet piping). The burner suctions the combustion air directly in
through an installation shaft or a double-walled flue gas pipe. This
procedure is recommended by ROTEX and has many advan-
tages:
–
The heating room does not need any ventilation opening into
the open air and therefore does not cool down.
– Lower energy consumption.
– Additional energy recovery in the flue gas pipe through pre-
heating the combustion air.
– Contamination from the environment of the burner are not
suctioned in. The heating room can thus be used as a
work-space, laundry room etc. at the same time.
– Possible to set up in loft areas or attic.
The condensate which arises is collected in the flue gas collector
and transported into the storage tank via a plastic pipe where it is
neutralised.
The pressureless storage water serves as heat storage medium.
Useful heat is supplied and led out by completely submerged,
helically intertwined stainless steel corrugated tubes (1.4404).
The hot water zone in the storage tank works as a combination of
heat storage and geyser (see fig. 3-3 and fig. 3-6).
The cold water which flows out when the hot water is removed is
first routed to the storage tank at the very bottom of the heat ex-
changer, where it cools the lower area of the storage tank down
as much as possible. The readiness zone is heated by a
heat ex-
changer for charging storage tank (SL-WT) which is heated
using the gas burner, heated from top to bottom where the water
also flows.
On its way to the top, the domestic water continuously absorbs
the heat of the storage tank water. The flow direction, operating
on the principle of counter-flow, and the coil-shaped heat ex-
changer create a pronounced temperature layering in the hot
water storage tank. As high temperatures can be maintained for
a very long time in the upper section of the storage tank, a high
hot water output is achieved even if water is drawn off over a long
period of time.
– On the GCU compact 515/515-BIV, 524/524-BIV models, the
SL-WT ends approx. 40 cm above the floor of the container.
Only the hot water zone about it is heated by the boiler. The
tank volume below it is heated only on using the solar energy.
– On the GCU compact 315/315-BIV, 324/324-BIV, 533/533-
BIV models, the SL-WT is pulled down all the way to the con-
tainer floor. The entire storage volume is heated by the boiler
(greater hot water output readiness).
Optimum water hygiene
Low flow or unheated zones on the domestic water side are com-
pletely excluded with the ROTEX GCU compact. It is impossible
for sludge, rust or other sediments to be deposited, as can be the
case with other large volume tanks. The water which is fed into
the system first is also discharged first (first in, first out principle).
1 Cold water connection (1" AG)
2)
2 Hot water (1" AG)
2)
3 Storage charge - flow (1" AG)
4 Storage charge - return flow (1" AG)
5 Heater- flow (1" AG)*
2)
6 Heater- return flow (1" AG)*
7 Solar - flow (1" IG)
8 Draining connection or solar return
flow
9 Exhaust
10 Supply air
11 Sensor immersion sleeve for storage
temperature sensor t
DHW
12 Upper filling connection and condensate
overflow connection
13 Condensation drain pipe
14 Condensate pipe
15 Heating heat exchanger (boiler body)
16 Heat exchanger (stainless steel) for drink-
ing water heating
17 Heat exchanger (stainless steel) for stor-
age tank charging or heating support
18 Heat exchanger (stainless steel) for biva-
lent storage charge
1)
19 BIV storage charge - flow
1)2)
(1" AG)
20 BIV storage charge - return flow
1)
(1" AG)
21 Solar inflow layering pipe
22 Heating circulation pump
23 Burner blower
24 Safety overpressure valve (heating circuit)
3)
25 Connection for SBG GCU compact
3)
26 Gas connection (G ½" IG) with connected
gas hose
27 Boiler control panel with RoCon BF control
28 Heat insulation
29 Burner trim
30 Silencer hood
31 Insertion mount, sound insulation hood
32 Type plate
33 Setting type plate
34 Threaded insert for carrying loop
35 Cover screen boiler control panel
3UV DHW
3-way change valve (distribution valve
KRWZDWHUKHDWLQJKHDWLQJVXSSRUW )
3-way change valve (mixer valve)
t
DHW
Storage temperature sensor
t
R
Return temperature sensor 1 in FLS1
(boiler circuit)
t
R
Return temperature sensor 2 (boiler
circuit)
t
V1
Flow temperature sensor (boiler circuit)
t
V2
Internal mixer sensor (boiler circuit)
A Gas boiler
B Storage tank (polypropylene double walled
jacket with PUR hard foam heat insulation)
C Unpressurised storage tank water
D Hot water zone
DS Pressure sensor
E Solar zone
FLS1
Flow sensor with return temperature sen-
sor t
R1
(boiler
circuit) 536
Optional: ROTEX Solaris R3 regulation
and pump unit
AG Male thread
IG Female thread
ÜM Union nut
Safety devices
Observe tightening torque!
* Ball cock (1" IG) is supplied with the equip-
ment
1)
Only valid for types with BIV configuration
2)
Recommended accessories:
Non-return valves (2 pcs.),
16 50 70
3)
Recommended accessories:
Safety group SBG GCU compact,
15 70 46
3UV
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