JRGUTHERM 2T Thermostatic circulation controller with shut

JRGUTHERM 2T Thermostatic circulation controller with shut
JRG Valves
JRGUTHERM 2T
Thermostatic
circulation
controller with
shut-off valve
Construction
Planning instruction
– Even with self-regulatory circulation controllers
such as the JRGUTHERM 2T, a simplified design
of the installation is possible.
3
T1
T2
1
2
– Recommended temperature spreading between the
water heater and the JRGUTHERM 2T is 2-5 K.
– In order to select the suitable circulation pump,
the discharge flow of the entire system has to be
determined. The pressure loss of the JRGUTHERM
2T is measured on the kVmax line on the diagram.
The regulators in the remaining pipe lines are to
be selected in such a way that the intersection of
the flow rate and the required pressure drop lies
within the interpretation field.
– A JRGUTHERM 2T is to be integrated into all
circulation loops.
5
4
6
T1 Hot water valve
T2 Disinfection valve
2
1
Primary connection
2
Secondary connection
3
Connection for thermometer/
PT 1000 temperature sensor
4
Connection for drain/sample valve
5
Plug for basic volume bore
6
Shut-off valve
– If there is any danger of the water flowing through
the JRGUTHERM 2T controller in the wrong
direction, this is to be avoided by the installation
of suitable non-return valves.
We recommend the installation of JRG Art. no. 8208
screw connections with non-return valves.
– In case of queries with regard to technical
compatibility, please feel free to contact our
Technical Sales Advisers or Our Technical
Customer Service.
Function/Installation position
JRGUTHERM 2T advantages
'
The JRGUTHERM 2T circulation controller regulates
the volume flow in normal as well as in disinfection
operation mode by permanently sensing the water
temperature with a thermostat. Hydraulic calibration
is automatically effected through thermal calibration.
(
All water-bearing parts are made of gunmetal, copper,
stainless steel or high quality plastic, seals are made
of EPDM.
)
The JRGUTHERM 2T circulation controller can be
installed in any position. By using the appropriate
threaded shut-off valves, non-return and shut-off
valves can be directly integrated.
For revision purposes, we recommend installing
shut-off valves, JRG Art. no. 8339, before and after
the circulation controller.
The JRGUTHERM 2T is a thermostatic circulation
controller for heated drinking water which regulates
circulation in normal as well as in disinfection
operation mode.
Setting range T1
(hot water temperature)
35-60°C
Setting range T2
(disinfection temperature)
Scale 0-5
Maximum temperature load
90°C
Maximum operating pressure
PN 10
Maximum differential pressure
0,4 bar
The JRGUTHERM 2T flow regulator is protected from
over-heating.
The circulation controller may not be used in gravity
circulation systems.
!
"
# $%
&
%
&
Certification pending.
Technical changes remain reserved at all times.
3
Control characteristics
KV [m3/h]
T [°C]
KV max 1.0
KV max 0.85
KV actual
JRGUTHERM 2T
*
$
T actual
$
+
T lead time
KV
KV min 0.1
KV min 0
t [min]
Phase 1
T1
Phase 2
Phase 3
Basic volume
Phase 4
T2
$
Control characteristics with factory-set target temperature:
T1-hot water temperature 58°C (range: 35-60°C)
T2
$
4
,
1
The hot water temperature is controlled.
The thermostat T1 regulates the calibration temperature according to factory-set value
of 58°C.
2
An increased hot water temperature supply to the JRGUTHERM 2T triggers a disinfection.
3
With factory settings the conversion is started at 66°C, the valve temporarily opens to the
maximum KV value T2.
Disinfection starts and the calibration.
4
The disinfection temperature is set according to the pre-set calibration temperature T2.
Heat output and the required amount of water are coordinated and thus the thermal
calibration is automatically controlled.
The basic bore is set to inactive and the water volume is reduced to the required volume flow.
Pressure loss
KV range T1
-
./
KVd89:30
T2 = 0.85 m3/h T1 = 1.0 m3/h
KV%1;:9830
100
7
0.1 m3/h
1000
10
10
100
1000
"
.0/
5
Installation example with JRGUTHERM 2T circulation controller
DIN
Text
JRG No.
TWK – Cold water – WKR
TWW – Hot water – WWV
TWZ – WW circulation – WWR
Stop valve
5200-34
Non-return valve
1610-15
Back flow preventer with shut-off
5262-84
Swing check valve
1682
Adjustable socket
6310
JRGUTHERM circulation controller
6325
Circulation pump
Drain valve
6000-12
Circulation collector
Water meter
5450
Ball valve
6020/23
Upper distribution
V<3l
V<3l
Single circulation
6
Pipe on pipe
Conventional
JRGUTHERM 2T/Accessories/Unions
<7=>?7(@
for hot water systems, two thermostatically controlled
temperatures (hot water/thermal disinfection),
gunmetal housing, with male threads, hexagon socket
adjusting screw with scale ring.
Factory settings T1 (hot water) 58°C and T2 (disinfection)
T1 normal operation, temperature range 35-60°C.
T2
Maximum temperature load 90°C.
Maximum operating pressure PN 10
Maximum differential pressure 0.4 bar.
The packaging of the circulation controller is used as
thermal insulation. The circulation controller may not be
used for gravity circulation systems.
99
GN
DN
b1
d1
d2
h1
h2
h3
l1
l2
l3
l4
l5
6325.015
½
15
!
G¾
¼
64
33
110
6
260
82
6325.020
¾
20
!
G1
¼
64
33
123
63.5
260
82
99
l6
6325.015
61
4
0.900
6325.020
61
4
0.950
kg
JRGUTHERM 2T/Accessories/Unions
made of chrome-nickel steel and brass, chrome-plated,
fits to JRGUMAT compact blending water facility 3500
and 3510, JRGUTHERM 2T 6325 and corner union 8341.
99
GN
DN
d
d1
l1
l2
8349.080
¼
8
36
G¼
16
"
kg
#
0.040
<7=-:888
for linking up to a building management system
with connection cable 2 x 0.25 mm2.
Temperature range 0-105°C.
Maximum operating pressure PN 10.
adjustable to maximum
99
GN
DN
d1
l1
l2
6326.001
¼
8
G¼
46
1000
kg
16
0.050
,!<7=#
with male thread, PN 16, water pocket free design,
for water up to 90°C.
Outlet with hose coupling, adjustable 90° or 45°.
99
GN
DN
d1
d2
d3
h
l
l1
l2
7301.080
¼
8
R¼
30
14
45
46
25
38
8
kg
16
0.055
JRGUTHERM 2T/Accessories/Unions
with male thread, PN 16, for microbiological water analyses
with temperature indicator including spanner for hot water
up to 90°C, gunmetal housing, metal sealing, water pocket
free design, EPDM seals, stainless sampling pipe,
sampling position adjustable 360°, suitable for:
JRG LegioStop items 1610-1631, 2190/2191,
non-return valves, 3600-3609 JRG LegioTherm 2T,
5200-5234 angle seat valves, 5262-5284 KRV non-return
!"$!#%
6325 JRGUTHERM 2T.
99
GN
DN
d1
d3
h
l
l1
l2
7306.080
¼
8
R¼
8
65
35
16
125
1
20
2
5
3
14
kg
0.145
#!-:8
made of gunmetal, with female thread, lockable with ball
valve, EPDM seal, loose brass nut, for water up to 90°C,
suitable for 3600, 6320 and 6325.
99
GN
DN
d1
d2
l
8339.240
½
15
Rp ½
G¾
55
30
&
#
8339.320
¾
20
Rp ¾
G1
55
!
32
0.200
1
kg
2
>
made of brass, with male thread and plastic (POM)
non-return valve, EPDM seal,
suitable for 6320 and 6325.
99
GN
DN
d1
d2
l
l1
l2
8208.240
½
15
Rp ½
G¾
42
34
8
30
19
0.090
8208.320
¾
20
Rp ¾
G1
45.5
!
8.5
!
24
0.130
1
2
kg
9
Adjustment/Setting ranges of the JRGUTHERM 2T circulation controller
In principle, all circulation controllers built into the
system must be adjusted to the same values.
A stepless adjustment is possible.
The adjustment values are shown in the tables 1 and
2. The individual circulation lines are automatically
calibrated.
!
After installation and adjustment, the transport
packaging of the JRGUTHERM 2T circulation controller
is used as thermal insulation.
– Thermal conductivity OD = 0.033 W/mK
– Fire behaviour (BKZ) 5.1/B1
– Application temperature d90°C
10
I
Changing the factory settings is at the sole responsibility
of the performer.
The factory settings of the JRGUTHERM 2T circulation
controller can be changed as follows:
Remove the sealing cap and apply Allen key to the
respective hexagon socket – either T1 for hot water
temperature or T2 for disinfection temperature.
Turn the key clockwise to reduce and turn it counterclockwise to increase the temperature.
Don’t exceed the stop (minimum/maximum) when
adjusting the temperature.
Adjustment/Setting ranges of the JRGUTHERM 2T circulation controller
Table 1: Calibration temperature T1 (hot water)
.L"/
(
.L"/
(%
.L"/
35
38
40
40
43
45
45
48
50
50
53
55
55
58
60
NOP
Q
61
63
60
63
65
Table 2: Calibration temperature T2 (thermal disinfection)
"
.L"/
.L"/
(
.L"/
8P
Q
~70
66
t75
1
'#
*
t*
2
'&
68
t
3
'!
69
t+
4
'"
t7
5
'
#
t80
(
– The JRGUTHERM 2T is maintenance-free.
– The mounting and operating instruction delivered
with the valve, has to be handed over to the building
owner.
11
GF Piping Systems > worldwide at home
Our sales companies and representatives
ensure local customer support in over 100 countries.
www.piping.georgfischer.com
The technical data is not binding. They neither
constitute expressly warranted characteristics nor
guaranteed properties nor a guaranteed durability.
They are subject to modification. Our General Terms
of Sale apply.
Adding Quality to People’s Lives
Headquarter Building Technology
Georg Fischer JRG AG
4450 Sissach/Switzerland
Phone +41(0)61 975 22 22
info.jrg.ps@georgfischer.com
www.jrg.ch
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Phone +61(0)2 9502 8000
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04795-100 São Paulo
Phone +55(0)11 5687 1311
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Fax
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