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1. INTRODUCTION
1.1. Precautions, requirements, recommendations
Detailed analysis of this documentation, as well as assembly and use of equipment, according to the
descriptions contained therein, and following all safety requirements, is the basis for the correct and
safe operation of the device.
Producer won´t be responsible for damages caused by wrong usage or unrespect of the instructions
given in this manual.
This technical documentation must be delivered together with the device. The documentation
contains information concerning all possible configurations of water pump group, examples of
installation, as well as activation, use, repair and maintenance. This instruction manual is an
essential component of the product and should be placed near the device and be readily available to
the service team.
Manufacturer reserves the right to introduce changes to the instruction, as well as changes to the
device that affect its operation, without prior notice. VTS shall be are no responsibility for on-going
maintenance and damage, caused by standstills of equipment related to the waiting for warranty
services, all and any damage related to the Client’s property, other than the device in question, as
well as malfunctions that result from incorrect installation or improper use of the device.
1.2. Transport and storage
Prior to the installing and taking the device out of the cardboard box, it is required to check whether
the cardboard box has not been damaged in any way.
2. PPLIC TION ND DESIGN
The water pump group (WPG) it is the set of connected elements designed for control of the water
heater capacity.
VTS offer two types of the pump groups: first one (WPG) is the fully assembled, ready to connect
to the water coil, set of the pump, mixing valve and by-pass with shutting boll valves (Fig.1a) and
the second (WPG.S) it's the more simple and cheaper configuration of the mixing valve and
circulation pump (Fig.1b). The second one needs more actions and use additional hydraulic fittings
to inbuilt in the water heater supply installation.
Both are divided on 9 sizes. That are combination of 5 tree-way mixing valves with 3 sizes of water
pump.
The main elements of the pump circuits that are: circulating water pump, three-way valve with
actuator, filter, and two manometers.
