Scope Of Delivery 3; Installation 4; Planning; Hydraulic Integration - Vaillant 00 2003 6743 Installation Instructions Manual

3 Scope of delivery
A B
AB
4
3 x
7
Fig. 3.1 Scope of delivery for external 3-way valve
Item Quantity Component
1 1 3-way valve motor
2 1 3-way valve body
3 1 Connection cable with Molex connector
Connector pipes, 28 mm with support
4 3
sleeves
5 3 Cap nuts 5/4"
6 3 Seals
7 1 Installation instructions
Table 3.1 Scope of delivery
Installation instructions for external 3-way valve 0020037633_03
3
1
2
5
6
3 x
3 x
4 Installation
4.1

Planning

>
Plan the hydraulic installation for the multi-functional
storage cylinder.
>
When planning, note that operation with a heat pump
requires separate hydraulic circuitry for the hot
water standby zone (hot water heated to consump-
tion setpoint) and the central heating buffer volume,
in order to use the multi-functional storage cylinder
in a properly effective way.
>
Refer also to the information in the system
manual for the multi-functional storage cylinder
(¬ Installation and maintenance instructions for
allSTOR buffer cylinder system), especially the
illustrations showing the hydraulic layouts.
4.2

Hydraulic integration

B <-> AB
A
AB <-> A
A
Fig. 4.1 Installation as a distributor in the heating flow line
from the heater
The 3-way valve, Kvs = 7.7, is integrated hydraulically as
follows:

Scope of delivery 3

Installation 4

B
AB
B
AB
GB 5