Mixed water temperature
constantly too low
Mixed water temperature
constantly too high
Installation instructions/schematic
diagram disregarded,
or pressure rates of cold and hot water
differ
Water heater not at target temperature
JRGUMAT installed above or too close to
the water heater
Circulation connection on the JRGUMAT
not flat sealing or not properly connected
flat sealing
Too low/high volume flow through the
JRGUMAT
Slide in JRGUMAT stuck due to dirt/
deposits
Too low/high volume flow through the
JRGUMAT
Installation instructions/schematic
diagram disregarded,
or pressure rates of cold and hot water
differ
Slide in JRGUMAT stuck due to dirt/
deposits
Adjust installation according to instructions
in the manual; if not possible: install pressu-
re reducers in the cold and hot water pipes
upstream before the JRGUMAT
Check water heater, increase hot water
temperature if necessary
Install the JRGUMAT side by side with the wa-
ter heater or install thermosiphon in the hot
water pipe upstream before the JRGUMAT
Use flat sealing union or cap
Check dimension of JRGUMAT; choose
smaller/larger dimension if necessary
Replace JRGUMAT
Check dimension of JRGUMAT; choose
smaller/larger dimension if necessary
Adjust installation according to instructions
in the manual; if not possible: install pressu-
re reducers in the cold and hot water pipes
upstream before the JRGUMAT
Replace JRGUMAT
Maximum differential pressure of hot and cold
water: ~0.5 bar
Hot water temperature must be 5 K higher
than the desired mixed water temperature
Install the JRGUMAT side by side with the water
heater with a 1 metre clearance; if clearance
<1 m: install thermosiphon in the hot water pipe
Adhere to installation instructions
Use nomogram to determine the appropriate
dimension of the JRGUMAT securing a volume
flow of ±1 K target value range
Install water treatment components (filter
and/or softener)
Use nomogram to determine the appropriate
dimension of the JRGUMAT securing a volume
flow of ±1 K target value range
Maximum differential pressure of hot and cold
water: 0.5 bar
Install water treatment components (filter
and/or softener)
!
Malfunction
?
Possible cause
Possible action
Precaution
JRGUMAT – Trouble shooting
1/2
General
Blocked shut-off valves and damaged
back flow preventer
Check functionality of valves, replace back
flow preventer
Regular control and maintenance of all valves
37 201 62 / e / 05.17
Содержание JRGUMAT
Страница 1: ...JRGUMAT Trouble shooting...
