emmeti T3 Installation and operation manual
T3 Control Set Installation Guide
1. General
1.1 This T3 control set has been designed for
control of flow and water temperature in
an underfloor heating system. It is pre-
assembled and tested to ensure that it can
be fitted with the minimum of on-site labour
and commissioned immediately once fitted.
1.2 As supplied it is designed to connect to the
left hand side of an Emmeti manifold with
210mm between the centres of the flow
and return arms. It can also be used with
any other manifold built on this dimension.
The control set can also be altered to fit to
the right hand side of a manifold simply by
removing the bracket clips and turning the
control set elbows through 180 degrees
using the union fittings at the top and bottom
of the pump. The pump motor may need to
be rotated through 180 degrees to minimise
the space occupied by the control set and
allow access to the electrical connection box.
Maximum static pressure 10 bar
Maximum differential pressure 3 bar
Maximum temperature 95oC
Operating temperature Range Adjustable between 35oC and 60oC
Inlet connections 2 x 1”M (G1)
Outlet connections 2 x 1” M (G1) – swivel joint
Overall dimensions mm 311h x 189w x 132h
Kvs 3.4
65
39
2. Connections & Dimensions
1.3 There are other manifold sets to cater for
applications with different control needs or
higher flow rates for larger residential and
commercial applications:
• U9700020 - Control set with thermostatic
valve (concealed dial) and pump, kvs 3.4
• U9700060 - Control set with thermostatic
valve and variable speed class A pump, kvs 3.4
• U9700030 - Control set with Thermostatic mixing
valve, thermal actuator and pump, kvs 3.4
• U9700040* - Control set with motorised
mixing valve and pump, kvs 6.3
• U9700050* - Control set with motorised
mixing valve and pump, kvs 8.0
* available with 3-point actuator, temperature
controller or weather compensator for mounting
on control set.
For a full description of each control set, please
consult our website www.emmeti.co.uk.
Fig.1 Overall Connections and Dimensions Fig. 2 Mounting Bracket Dimensions
T3 Control Set Installation Guide
Please note the overall dimensions of the control set and allow reasonable access at either side and the
front for installation and maintenance
3. Technical Data
4. Control Set Contents
Pre-assembled control set including:
• ‘L’patternthermostaticmixingvalve–
operating temperature range 35
o
C to 60
o
C
• GrundfosUPS25-60circulatingpump
• Inletteeassemblywith1”Mswivelconnector
to the underfloor return rail
• Outletelbowassemblywithbuilt-in
temperature gauge and 1”M swivel connector
to the underfloor flow rail
• Mountingbracketwithrubbersupports
5. Installation
5.1 Remove the control set assembly carefully
from the packaging and check to ensure that
all components are in place and that there is no
damage to them.
5.2
The control set is supplied for connection to the
left hand side of the manifold but can be altered
very simply for connection to the right hand side.
(i)
Remove the mounting bracket clips from the
control set by unscrewing the two screws
shown in Fig. 3 and rotating the upper and lower
elbows through 180
o
using the pump union nuts.
5.3 Re-fit the mounting bracket and rotate the
pump to an upright position as shown in Fig. 4.
Fig. 3
Remove mounting
bracket clips
Fig. 4
Re-t mounting
bracket
5.4 If the pump needs to be lowered into the
gap in the mounting bracket for space-saving
reasons, it will be necessary to remove the
Allen screws securing the pump motor and
rotate the motor so that the junction box is at
the front.
5.5 The control set can be attached to the
manifold either before or after the manifold
is secured to the wall. The control set should
be secured to a flat vertical surface able to
support the weight of the control set and
manifold. Using the dimensions shown in
Figs. 1 and 2, ensure that there is sufficient
space for installation and maintenance at the
intended position for the control set. The fixing
hole positions of the mounting bracket can be
marked through the mounting bracket itself.
5.6 A swivel joint is fitted to each side of the
control set for connecting to the 1” F manifold
tappings. The inlet tee swivel joint should be
connected to the return rail and the outlet
elbow swivel joint to the flow rail of the
manifold. Carefully offer up and screw the
swivel joint threads evenly into the manifold
using a 37mm A/F spanner: the use of a
31mm A/F spanner will also ensure that the
connection to the control set is kept tight – see
65
39
Installation and Commissioning Instructions
T3 Control Set withThermostatic Mixing
Valve and Pump U9700080
• Boxed set pre-assembled for immediate installation, including:
- Thermostatic mixing valve adjustable from 35oC to 60oC
- Temperature gauge measuring mixed water temperature
- GrundfosUPS25-60circulatingpump
- 1” M swivel joints for fast connection to 1” F manifold tappings
- All nickel plated for improved appearance
- Supportingbracketwithrubbersupportsforextrastabilityand
noise reduction
• Built-in non-return valve in flow elbow to allow simple system filling when
commissioning
• 1” M close coupled flow and return connections
• SuitableforTopwayType2manifoldsoranymanifoldwithconnections
on 210mm centres
• Optional ball valve set for fitting to 1” M connections
• Valve body kvs 3.4
Engineered Water Solutions
T3 Control Set Installation Guide
Fig. 5. An optional 31mm-37mm spanner is
available from Emmeti – code U9760010. The
joints use o-ring seals and care should be taken
not to over-tighten them.
5.7 Once the control set is connected, finish
securing the manifold and control set to the
wall if not already completed.
5.8 The primary flow and return pipework can now
be connected to the 2 x 1”M connections
facing downwards. The flow connection is at
the left hand side and the return connection is
at the right. It is recommended that ball valves
are used to isolate this pipework where it is
connected to the control set: Emmeti offer a
pair of ball valves with a 1” union connection
suitable for this application, code 6066R006.
Fig. 5
Tightening
the swivel joints
6. Commissioning
6.1 Filling the UFH system - The built-in non-return
valve in the flow elbow allows you to fill the
circuits from the upper flow rail drain and fill
valve only.
Be aware that you cannot get the benefit of
this feature when filling via the primary flow
and return connections or the lower manifold
rail drain and fill valve
6.2 The control set, manifold and underfloor
circuits can now be filled and commissioned
in accordance with the manifold instructions.
Prior to filling, a final check of all joints should
be made to ensure no connections have
loosened during transit For details of the
recommended commissioning procedure
please refer to the Emmeti literature for the
manifold. A pair of male blanking plugs, code
U9760040, is recommended to stop circulation
across the pump set during filling
6.3
Once the system has been filled and pressure
tested, the individual underfloor circuits can be
balanced. As part of this process the mixed flow
temperature must be adjusted to the correct
level for the system design. To achieve this,
the thermostatic mixing valve can be adjusted
between 35
o
C and 60
o
C as shown in Figs. 6 & 7
below. Allow sufficient time for the temperature
to stabilise, then check the setting against
the temperature reading on the mixed flow
temperature gauge fitted to the control set.
6.4 Please retain this document and hand it to the
user for future reference.
Fig. 6 Choose the setting number to give the correct
temperature for your system. The setting numbers
are a guide only and should be checked against the
tted temperature gauge.
SettingNumber 1 2 3 4 5 6
Temperature
o
C 35 40 45 50 55 60
Emmeti UK
6Tannery Yard, Witney Street, Burford, Oxfordshire, OX18 4DW
T +44 (0) 1993 824900 F +44 (0) 1993 824990
Fig. 7 Adjust the
setting number
against the index
mark as shown
Index Mark
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