Underfloor heating manifold

Thermotech underfloor heating system
Underfloor heating manifold
Product ID:
501xx
503xx
504xx
Advantages
• Stainless steel and smart design
• Light in weight
• Delivered fully assembled
• Can be installed with Thermotech’s mixing units
TMix® M, L2 and L3
• High class raw material
• Long warranty, up to 10 years
• Easy and neat electrical installation thanks to
the DIN-rail
Product specification
FaCTS
PRODUCT ID
501xx - with straight ball valves
503xx - with angled ball valves
504xx - with one straight and one angled ball valve
WIDTH
DEPTHHEIGHT
300-800 mm 105 mm 315 mm excl. fastenings
(2-12 loops) 470 mm incl. fastenings
distance betweenconnection
loops
G20
50 mm
accessoriesproduct id
Pipe fixture 2 - 5 loops
62505
6 -9 loops 62507
10- 12 loops
62509
manifold extension
filling/draining
Stainless steel 1.4301
G20 with lid
(X5CrNi8-10) Ri25
Air vent
Thermometer
Manual
Integrated in flow and
ball valve
return bars
Ri25 with loose screw nut
ACCESSORIES By-pass
PRODUCT ID
50001
Drip stop water alarm
67040
ID-tags for 4 loops
50094
ID-tags for 8 loops
50098
By-pass washer
50017
Thermotech’s underfloor heating manifold in stainless steel
is available from 2 to 12 loops. The light weight manifold
has a smart design which enables an easy and neat installation. The high-quality raw material used in the components guarantees a good protection against corrosion and
a high resistance to pressure.
The manifold is delivered fully assembled and is equipped
with;
•
•
•
•
•
•
•
Integrated thermometers
Connections for underfloor heating pipes
Integrated thermostat
Balancing valves on each loop
Manual air vents and filling connections.
Straight or angled ball valves
DIN-rail on which the control unit with tranformer is
mounted
Valves and side-pieces are assembled in the factory which
means that no additional assembly is required.
The manifold comes with connections mounted on the left
side as standard, but can easily be switched to a right-sided
installation by moving the thermometer to the connection
on the back.
IG301-1211
Thermotech Company Group
Phone: +46 (0)620 68 33 30, www.thermotech.eu
Thermotech Scandinavia AB fulfils the ISO standards for quality- and environment management.
Certifierad
ISO 9001
ISO 14001
1(4)
Thermotech underfloor heating system
Installation guide Thermotech underfloor heating manifold
Things to consider before installing
mounting
In order to achieve the best performance the manifold should
be installed central in the underfloor heating system. As the
manifold is equipped with manual air vents it should always
be installed at the highest point of the system. When we plan
your underfloor heating system we calculate the flow, pressure
fall and different flow temperatures that are needed to cover
the heat needed for the rooms. We then adjust the underfloor
heating system according to these calculations.
The enclosed screws can be used to mount the manifold onto
the wall or to build it in the wall (see last page for built-in
measures).
Accessories
The best financial efficiency and comfort is achieved by installing separate room controls. The room thermostats control the
actuators on the manifold, which in turn control the temperature in each room. View the installation guides IG 401 or
404 for further information. We also offer a lockable manifold
cabinet that allows the manifold and controls to be encased for
safety or to enhance the installation aesthetically.
Switching from left-sided to rightsided
connection
The manifold comes with connections mounted on the left
side as standard, but can easily be switched to a right sided
installation by following this procedure:
A.Dismount the thermometers on both manifold extensions.
B.Unscrew the consoles and loosen the manifold extensions.
C.Swap places of the immersion sensor of the thermo-
meter with the plug on the back. Both have O-ring sealing.
D.Remount the manifold extensions and thermometers on the consoles.
A
B
C
D
2(4)
If using reinforcing bars to aid the mounting of the manifold
during the constructing period, these should be demounted
when then the manifold is installed at its ordinary place.
Protective piping around the reinforcing bars makes the
demounting process easier. After demounting, fill the holes
left by the reinforcing bars with an appropriate material. The
manifold must not have any direct contact with the concrete
slab.
heat conducting medium
Drinking water should be used as heat conducting medium
and normally don’t need to be alcalised. At any risk of freezing, use antifreeze fluid when filling up the system. Follow
respective supplier’s instructions for the proper mix of antifreeze fluid in the heat conducting medium. We recommend
a mixture where maximum 30% glycol is used. A higher
mixture may damage the heating system components.
It’s important that all components in the system has a secure
oxygen diffusion barrier. Intrusion of oxygen in the system
can result in a shorter life time of the system’s moving parts
due to corrosion.
Filling and draining
To secure the best draining, please follow these procedures to
fill the system with water:
A.Mount the manifold
B.Connect all loops and close all except one. Also close the ball valves.
C.Connect one pipe to the filling valve another one to the draining valve. Open the valves and flush water through the loop until there is no air left.
D.Repeat step C for each loop. Remember to close the valves for each loop that is filled.
When the loops are filled with water they have to be opened to let the last air in the manifold extension to be drained through the manual or automatic air vents. Note! It is
important to close the draining valves when all air has been
removed from the system.
Thermotech underfloor heating system
Installation guide
System tightness test
Thermotech underfloor heating manifold
A
B
C
D
E
F
When the underfloor heating system is filled and drained
of air it has to be tightness tested to ensure that is it fully
sealed. This is done by putting the system under 1.43 times
the normal pressure according to VVS AMA 98, which
means 3-4 bar pressure for at least two hours. Use the
supplied protocol to document the procedure.
Note! Testing with air or gas poses considerable risks for
the personal safety and requires that the person who will
perform the test are accredited.
Mounting of bypass
The bypass is installed when the system is filled with water
and drained of air. The bypass is installed between the flow
and return extensions on the filling and draining valves.
After installing the bypass, one of the filling valves should
be opened 3 revolutions and the other one should be
opened fully.
Mounting of DIN-rail for the control
unit
A.Turn the holds that are going to support the DIN-rail
and fasten them by using an Allen key.
B.Mount the DIN-rail on the bolts of the holds and fasten them.
A
Adjustment of flow
In order to get the right amount of water to circulate in
each loop, each loop’s balancing valves has to be set according to the adjustment table that comes with the system.
This should be done out after the system is filled and the
tightness testing is completed.
A.Loosen the balancing valve’s plastic cover with a 5 mm
Allen key
B.Close the lower brass seat by turning it clockwise with a 5 mm Allen key
C.Screw the plastic ring anticlockwise with a 6 mm Allen
key. Note: Do not unscrew it fully!.
D.Open the lower brass seat, anticlockwise, according to the number of revolutions (0.5, 1.0, 1.5, 2.0…) found in the projects adjustment table. Note! The rpm should not go below 2, but exceptions may occur.
E. Screw the plastic ring clockwise to lock the brass seat
F. Close the balancing valve’s plastic cover with a 5 mm
Allen key
B
Mounting of actuators
A.Dismount the manual wheel.
B.Screw the actuator’s metal nut on the thermostatic valve while the actuator is held in the correct position.
A
B
3(4)
Thermotech underfloor heating system
Installation guide
Thermotech underfloor heating manifold
Number
of turns
Antal
varv
1,95
2,14
2,88
1,30
0,95
0,55
0,14
0,18
0,20
kvs (m3/h)
0,30
CHART FOR ADJUSTMENT OF FLOW
open
HeltFully
öppen
5,5
299
89, without thermometer
K
Recommended min. 460
L
480
M
Recommended min. 250
A
(mm)
B
(mm)
2
3
4
5
6
7
8
9
10
11
12
300
350
400
450
500
550
600
650
700
750
800
200
250
300
350
400
450
500
550
600
650
700
66
C
Weight*
100
(mm)
(kg)
168
218
268
318
368
418
468
518
568
618
668
31
I
66
H
100
J
3,8
4,3
4,8
5,4
5,9
6,4
7,5
7,5
8,0
8,6
9,1
*The weight includes a complete manifold with ball valves,
connections, consoles, thermometers and hand wheel.
4(4)
F
D
E
K
394
A
482
31
105, with thermometer
482
J
L
G
95
30
458
65
I
268
C
302
B
394
268
302
service opening
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN MILLIMETERS
SURFACE FINISH:
TOLERANCES:
LINEAR:
ANGULAR:
UNLESS OTHERWISE SPECIFIED: DEBUR AND
BREAK SHARP
DIMENSIONS ARE IN MILLIMETERS
EDGES
SURFACE FINISH:
TOLERANCES:
LINEAR:
ANGULAR:
FINISH:
If the equipment mounts inside the wall, an opening for
service or replacement shall be at least equal to the product external dimensions.
NAME
DRAWN
SIGNATURE
NAME
DATE
DRAWN
2012-10-16
CHK'D
CHK'D
APPV'D
APPV'D
MFG
MFG
Q.A
Q.A
MATERIAL:
WEIGHT:
FINISH:
SIGNATURE
version of the installation instructions. No liability is accepted for any typographical errors.
H
No. of
loops
266
455
200
290
328
F
G
M
95
95
200
200
E
328
D
458
Dimension
(mm)
We reserve the right to change products without notice. We refer you to www.thermotech.eu for the latest
Size
266
Flow (l/h)
299
Measurements
Pressure loss ∆p (kPa)
Pressure loss ∆p (kPa)
5,5 turns
DO NOT SCALE DR
DATE
PROJECT:
2012-10-16
01 golvvär
TITLE:
MATERIAL:
DWG NO.
SCALE:1:5
WEIGHT: