Thermostatic Radiator Valves - Vaillant TURBOmax Pro 28 Instructions For Installation And Servicing

Connection details for programmable thermostats
ACL Drayton
Lyfestyle PT271, PT371
ACL Drayton
Digistat 2, 3, 4
ACL Drayton
Digistat RF - SCR Receiver
Danfoss Randall
TP4, TP5, TP5E
Danfoss Randall
TP5E RF with receiver RX1
Danfoss Randall
TP75
Grässlin Towerchron
RTC7
Honeywell
CM61, CM67, CM31, CM37
Horstmann
Centaurstat 1, 7
Landis & Staefa
REV 11, REV 15, REV 22
Smiths Timeguard
ProgramaSTAT PRT11, PRT17
Sunvic
TLX 6501
Sunvic
TLX RFP, TLX RFD
Vaillant
VRT 9083QT, VRT 9084QW
Fig. I.12
BOILER INSTALLATION SEQUENCE
L N 1 2 3 4
L N 3 4
3
1 2
3 4
L N 1 2 3
L N 3 4
3 2 1
4 3
1 2 3 4
L N
L N 3 4
1 2 3 4 5
A B C
3 4
1 2 3
3 4
A B C
3 4
1 2 3 4
3 4
L L1
3 4
L N 3 4
L N 3 4
1 2 3
3 4
L N 1 2 3 4
L N 3 4
F 9 7 8
L N 3 4
Controls
External electrical controls
The boiler terminals 3, 4 and 5 are
for connecting external
electrical controls such as a time
switch and/or room thermostat.
Terminals 3 and 4 are linked together
when the boiler is supplied. If external
controls are used, this link must be
removed, and the controls connected
across terminals 3 and 4.
Terminal 5 is an additional neutral
connection for external neutrals such
as from the anticipator of a room
thermostat.
6
Connection of external controls
Connection details for programmable
room thermostats.
Fig. I.12 shows the connection details
where a programmable room
thermostat (time switch with built in
room thermostat) is used to control the
boiler.
Important: The arrowed numbers
indicate connection into the relevant
terminal in the boiler terminal strip.
Connection details for external time
switches and boiler terminal strip.
Fig. I.13 shows the connection details
where a time switch is used without a
room thermostat to control the boiler.
Important: The arrowed numbers
indicate connection into the relevant
terminal in the boiler terminal strip.
If a room thermostat is to be
connected in addition to a time switch
the wire between the time switch
„ON" terminal and boiler terminal 4
should be broken by the contacts of
the room thermostat (see schematic
layout, Fig. I.14).
Vaillant optional plug in timer
accessories
Refer to the instructions supplied with
the optional accessories for
connection details.
Upon completion of all electrical
connections refit the terminal box
cover by pushing into place. The
cover is secured by two locking clips.

Thermostatic radiator valves

The boiler has a built in automatic
bypass valve making it ideal for use
in systems with thermostatic radiator
valves (no separate system bypass is
required).
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