ELDOM INVEST A5 Buffer Tanks With Enamelled Containers Instruction Manual

: August 9, 2024
: ELDOM INVEST

Table of Contents

BUFFER TANKS
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BUFFER TANKS

TECHNICAL DESCRIPTION, INSTALLATION AND USAGE REQUIREMENTS

v240123

Pos. 3* is installed by the installation company. It is in the device packaging.

The flange of buffer tanks marked with 60R, 80R and 120R is on the right when the device is in horizontal position.

(I)

| BCE 60(R)
/BCH 60(R)/| BCE 80(R)
/BCH 80(R)/| BCE 120(R)
/BCH 120(R)/
---|---|---|---
(II)| 60| 80|

120

(III)

| 0.6 MPa
1-(IV)|

G1¼ F

2-(V)

| ✓
3*-(VI)|

G½ F

4-(VII)

| ✓ – /x/
5-(VIII)|

G½ F

6-(IX)

| G1½ F
A [mm]| 715| 810|

1150

J [mm]

| 280| 375| 715
M [mm]| 320| 415|

755

(XIII)

BCE08039

BCE05039 BCE03039

BCExxx39 – BUFFER TANKS WITH ENAMELLED CONTAINERS

(I)

| BCE03039| BCE05039| BCE08039
---|---|---|---
(II)| 30| 50|

80

(III)

| 0.6 MPa

1-(IV)(1)

|

G½ M

2-(IV)(2)

| G½ M

3-(IV)

|

4 x G1¼ F

| 4 x G1¼ F|

6 x G1¼ F

4-(V)+(VII)

| ✓

5-(VIII)

|

G½ F

H [mm]|

535

| 735|

1100

H1 [mm]|

195

| 395|

760

H2 [mm]|

–

| –|

365

(XIII)

BCE xxxKyy

BCE xxxF

(I)

| BCE 150K60| BCE 200K60| BCE 300K| BCE 500K80| BCE 750F| BCE 1000F| BCE 1500F| BCE 2000F
---|---|---|---|---|---|---|---|---
(II)| 150| 200| 300| 500| 750| 1000| 1500|

2000

(III)

| 0.6 MPa
1-(IV)| G1½ F| G1½ F| G1½ F| G2 F| G2 F| G2 F| G2 F|

G2 F

2-(V)

| ✓
3-(VIII)|

G½ F

4-(IX)

| G1½ F
5-(IV)| G¾ F| G¾ F| G¾ F| G1¼ F | G1¼ F | G1¼ F | G2 F|

G2 F

6-(VII)

| ✓
H [mm]| 1150| 1430| 1605| 1765| 1640| 1975| 2210|

2255

H1 [mm]

| 195| 195| 200| 230| 310| 310| 395| 405
H2 [mm]| 430| 520| 580| 645| 625| 735| 855|

865

H3 [mm]

| 665| 850| 950| 1055| 935| 1165| 1315| 1325
H4 [mm]| 900| 1170| 1330| 1470| 1250| 1590| 1775|

1785

H5 [mm]

| 665| 780| 950| 1055| 860| 1020| 1230| 1240
D [mm]| 600| 600| 670| 800| 1050| 1050| 1250|

1400

M [mm]

| 690| 690| 760| 890| 1140| 1140| 1385|

1535

(XIII)

(I)

| BC 200K60| BC 300K| BC 500K80| BC 750F| BC 1000F| BC 1500F| BC 2000F
---|---|---|---|---|---|---|---
(II)| 200| 300| 500| 750| 1000| 1500|

2000

(III)

| 0.3 MPa
1-(IV)| G1½ F| G1½ F| G2 F| G2 F| G2 F| G2 F|

G2 F

2-(VIII)

| G½ F
3-(IX)|

G1½ F

4-(IV)

| G¾ F| G¾ F| G1¼ F| G1¼ F| G1¼ F| G2 F| G2 F
A [mm]| 195| 205| 220| 330| 330| 385|

395

C [mm]

| 855| 835| 980| 880| 1050| 1220| 1230
D [mm]| 600| 670| 800| 1010| 1010| 1250|

1400

F [mm]

| 515| 575| 635| 645| 760| 845| 855
H [mm]| 1450| 1605| 1765| 1665| 2000| 2210|

2255

K [mm]

| 855| 945| 1045| 960| 1190| 1305| 1315
L [mm]| 1180| 1315| 1460| 1270| 1620| 1765|

1775

(XIII)

Buffer tanks with one heat exchanger (BCS 200K, BCS 300K…) have only lower heat exchanger

(I)

| BCS(2) 200K60| BCS(2) 300K| BCS(2) 500K80| BCS(2) 750F| BCS(2) 1000F| BCS(2) 1500F| BCS(2) 2000F
---|---|---|---|---|---|---|---
(II)| 200| 300| 500| 750| 1000| 1500|

2000

(III)

| 0.3 MPa
1-(IV)| G1½ F| G1½ F| G2 F| G2 F| G2 F| G2 F|

G2 F

2-(X)

|

0.9 m²
4.33 l
G¾ F

4-(VIII)

| G½ F| G½ F| G½ F| G½ F| G½ F| G½ F| G½ F
5-(IX)| G1½ F| G1½ F| G1½ F| G1½ F| G1½ F| G1½ F|

G1½ F

6-(IV)

| G¾ F| G¾ F| G1½ F| G1¼ F| G1¼ F| G2 F| G2 F
A [mm]| 200| 205| 220| 330| 330| 385|

395

B [mm]

| 260| 235| 260| 360| 360| 425| 435
C [mm]| 855| 835| 980| 880| 1050| 1220|

1230

D [mm]

| 600| 670| 800| 1010| 1010| 1250| 1400
E [mm]| 1000| 885| 1040| 930| 1105| 1245|

1255

F [mm]

| 515| 575| 635| 645| 760| 845| 855
H [mm]| 1450| 1605| 1765| 1665| 2000| 2210|

2255

I [mm]

| 550| 530| 630| 470| 630| 730| 730
J [mm]| 230| 400| 380| 290| 470| 470|

470

K [mm]

| 855| 945| 1045| 960| 1190| 1305| 1315
L [mm]| 1180| 1315| 1460| 1270| 1620| 1765|

1775

(XIII)

Buffer tanks with one additional heat exchanger “BCWS” have only lower heat exchanger

(I)

| BCWS(2) 300K| BCWS(2) 500K80| BCWS(2) 750F| BCWS(2) 1000F| BCWS(2) 1500F| BCWS(2) 2000F
---|---|---|---|---|---|---
(II)| 300| 500| 750| 1000| 1500|

2000

(III)

| 0.3 MPa
1-(IV)| G1½ F| G2 F| G2 F| G2 F| G2 F|

G2 F

3-(XI)

4-(XII)

| 3m² / 16.6l
G1 F| 4.65m² / 25.7l
G1 F| 6m² / 33.3l
G1 F| 7.5m² / 41.6l
G1 F| 9m² / 49.4l
G1 F| 11.24m² / 62.4l
G1 F
5-(VIII)| G½ F| G½ F| G½ F| G½ F| G½ F|

G½ F

6-(IX)

| G1½ F| G1½ F| G1½ F| G1½ F| G1½ F| G1½ F
7-(IV)| G¾ F| G1¼ F| G1¼ F| G1¼ F| G2 F|

G2 F

A [mm]

| 205| 220| 330| 330| 385| 395
B [mm]| 235| 260| 360| 365| 425|

435

C [mm]

| 835| 980| 880| 1050| 1220| 1230
D [mm]| 670| 800| 1010| 1010| 1250|

1400

E [mm]

| 885| 1040| 930| 1105| 1245| 1255
F [mm]| 575| 635| 645| 760| 845|

855

H [mm]

| 1595| 1765| 1665| 2000| 2210| 2255
I [mm]| 530| 630| 470| 630| 730|

730

I [mm]

| 400| 380| 290| 470| 470| 470
K [mm]| 945| 1045| 960| 1190| 1305|

1315

L [mm]

| 1315| 1460| 1270| 1620| 1765|

1775

(XIII)

(I)

| BCW 300K| BCW 500K80| BCW 750F| BCW 1000F| BCW 1500F| BCW 2000F
---|---|---|---|---|---|---
(II)| 300| 500| 750| 1000| 1500|

2000

(III)

| 0.3 MPa
1-(IV)| G1½ F| G2 F| G2 F| G2 F| G2 F|

G2 F

2-(IV)

| G¾ F| G1¼ F| G1¼ F| G1¼ F| G2 F| G2 F

4-(XII)

5-(VIII)

| G½ F| G½ F| G½ F| G½ F| G½ F| G½ F
6-(IX)| G1½ F| G1½ F| G1½ F| G1½ F| G1½ F|

G1½ F

A [mm]

| 220| 220| 330| 330| 385| 395
C [mm]| 980| 980| 880| 1050| 1220|

1230

D [mm]

| 800| 800| 1010| 1010| 1250| 1400
F [mm]| 635| 635| 645| 760| 845|

855

H [mm]

| 1765| 1765| 1665| 2000| 2210| 2255
K [mm]| 1045| 1045| 960| 1190| 1305|

1315

L [mm]

| 1460| 1460| 1270| 1620| 1765|

1775

(XIII)

(I) Type

(II) Capacity range

(III) Rated pressure

(IV) Inlet(1) – Outlet(2)

(V) Flange

(VI) Venting, stopcock

(VII) Anode

(VIII) Socket for thermostat

(IX) Additional socket

(X) Lower heat exchanger

(XI) Upper heat exchanger

(XII) Heat exchanger for DHW

(XIII) Dimensions in the table are approximate

WARNING! Before installation and operation with the buffer tank, read carefully the present manual!

In terms of the type of water container buffer tanks are classified as made of three different materials – carbon steel with enamel protective coating, carbon steel without coating and corrosion resistant chrome-nickel alloy steel.

PURPOSE

Enamelled buffer tanks are designed for storage of domestic hot water (DHW).
Buffer tanks without protective coating are designed for use in central heating and general heating systems.
Buffer tanks made of chrome-nickel alloy steel can be used for both purposes.
Combined buffer tanks have built-in coil from chrome-nickel steel, which is designed to provide DHW.

TECHNICAL DESCRIPTION

The buffer tanks with storage capacities up to 120 litres (capacity ranges 60, 80 and 120) may either be mounted vertically or horizontally on hinges on the premises wall, or be placed in a vertical position on the room floor.
Buffer tanks by ranges 150-2000 are exclusively of standing type they may be mounted only on the room floor.
The tanks by ranges 80-120 are provided with outer steel shell with epoxy coating and insulation of moulded polyurethane foam. The tanks by ranges 150-500 are delivered with heat insulation of hard (molded) polyurethane (letter “K” in model number). The tanks by ranges 750-2000 are delivered with heat insulation of expanded polystyrene (letter “F” in model number).
Enamelled water containers are provided with additional protection against corrosion through embedded anodes made of suitable alloy.
The water containers without enamelled coating corrosion protection is secured by corrosion inhibitors contained in the coolant heating system inhibitors. The corrosion inhibitors are specifically indicated in the installation instructions by the company responsible for the selection and production of the inhibitors contained in each specific buffer storage tank.
The buffer tanks made of chrome-nickel steel are identified by the letter H in their model denomination.
Modifications of the buffer storage tanks with built-in one or two heat exchangers are correspondingly marked with additional letters S or S2 in their model denomination.
Combined buffer tanks are marked with “W” in model number. They may be have up to two additional heat exchangers for connection with heating system. Combined buffer tanks have no internal protective coating.
The exact and complete model number, nominal operating parameters and serial number of purchased buffer tank are marked on manufacturer plate affixed on its body.
The water used in DHW dedicated buffer storage tanks must comply with the regulations for domestic water, in particular concerning the chlorides content which must be below 250 mg/l and electric conductivity which must be above 100 S/cm and less than 2000 S/cm for enamelled buffer storage tanks and below 600 S/cm for buffer tank vessels made of chrome-nickel steel.

INSTALLATION AND CONNECTION

The buffer storage tanks may be installed only indoors in premises protected from dripping and splashing water. The premises must be secured against temperatures fall below 0 °C. The room floor must have a siphon plant effluent or other device with the same purpose, which must absorb any leaked liquid from the buffer storage tank during prevention or servicing works.

WARNING! The water supply/heating system feeding the buffer storage tanks must be equipped with suitable relief valve in order to secure that pressure in the buffer storage tanks be constantly kept under the nominal operational pressure. Between the buffer tank container and the relief valve there must be no stop valves.

Installation and connection of the buffer storage tank must be carried out only by companies with business in the field of heating and air conditioning equipment and in accordance with the design such companies produce.
IT IS PROHIBITED to install stop valves on the inlets and outlets of heat exchangers simultaneously in cases where a back-up immersion heater is installed in the buffer vessel with heat exchangers.
Where the plumbing pipes are copper or of another metal, other than that of the water tank, or where brass fasteners are used, it is recommended to install on the buffer tank inlet and outlet nonmetallic couplings (dielectric fittings).
The buffer tank outlets that shall not be put into usage must be properly blocked to ensure water tightness at an outgoing pressure of at least twice the nominal of the concerned buffer vessel at the maximum operating fluid temperature.

USAGE AND MAINTENANCE

The buffer storage tanks must be used only as part of the concerned water supply or heating system. The requirements for its usage are listed in the documentation provided to the consumer by the company that carried out the system design, installation and commissioning activities. Compliance is absolutely mandatory!

The manufacturer reserves the right to make any further structural changes that do not affect the buffer safety.

Manufacturer:
ELDOMINVEST Ltd., www.eldominvest.com
275A VI. Varnenchik blvd., Varna, 9009, Bulgaria