Fitting
|
71
6 720 807 794 (2013/04)
UNIMAT
10.4
Additional safety equipment to DIN-EN 12828
10.4.1
Safety equipment
10.4.2
Boiler safety equipment assembly to DIN-EN 12828
An intermediate flow piece and boiler safety assembly
are required to install the safety equipment.
Versions flange PN16 to DIN 2633:
• DN32/40/50/65/80/100/125/150/200/250/300/350
The safety equipment assembly for “standardised”
boiler versions consists of:
• Intermediate flow piece
• Shut-off valve
• Boiler safety assembly
• Minimum pressure limiter
• PRESSURE GAUGE
• Pressure gauge shut-off valve with test connection
The safety equipment assembly in the standard
equipment level consists of:
• Intermediate flow piece
• Shut-off valve
• Boiler safety assembly
• Minimum pressure limiter or low water indicator
• PRESSURE GAUGE
• Pressure gauge shut-off valve with test connection
• Maximum pressure limiter
Fig. 49 Boiler safety equipment assembly for UNIMAT UT-L boilers (intermediate flow piece with boiler safety assembly and
valves; dimensions in mm)
[1]
Flow
[2]
Level limiter
(designed as low water indicator, optional)
[3]
Pressure indicator (with test function)
[4]
Maximum pressure limiter
[5]
Level limiter (designed as minimum pressure
switch)
[6]
Shut-off valve DN20
[7]
Temperature sensor (variable output control,
optional)
Safety equipment version
High limit safety cut-out (STB) with shutdown temperature
≤
110 °C
Heat source
>
300 kW
Safety equipment assembly, standard equipment
level
required
Set with STB and maximum pressure limiter
Required
1)
1) As an alternative to a flash trap, the set with STB and maximum pressure limiter can be used
Minimum pressure limiter
Alternative to low water indicator
Table 33 UNIMAT UT-L boiler safety equipment versions
BAR
1
1
2
3
4
5
6
7
L
D
B
1
B
2
~510
700
6 720 642 347-62.1il