User manual HONEYWELL SG160S

[. . . ] 24 If not otherwise stated, the model SG160S is used in the graphical representations. GB Type SG160S and SG160SD safety groups are used to protect pressurised water heaters according to the requirements of DIN 4753, Part 1, DIN 1988 and DIN EN1488. SG160S SG160S safety groups combine non return valve, shutoff valves, test point and diaphragm type safety valves in one appliance. [. . . ] 40 °C 1 /2" - 1" Connection sizes SG160SD only Inlet pressure max. Install the safety group into the cold water pipeline Pay attention to the direction of flow!1m During the heating process, water must be able to escape from the blow-off pipe for reasons of safety. The discharge pipeline of the diaphragm safety valve must be observable!If the discharge tundish is not directly connected to the safety group, a blow-off pipe must be installed between the safety group and the discharge tundish!The blow-off pipe must have the same size as the outlet crosssection of the safety valve, and must not have more than 2 bends or exceed 2 m in length!If it is imperative that there are more bends or a greater length is necessary, the diameter of the entire blow-off pipe must be one size larger. More than 3 bends as well as a length greater than 4 m is not permitted!Do not install a shut-off valve between the diaphragm safety valve and the water heater!The appliance must be easily accessible for maintenance and repair work!If there is no drainage possibility at the installation location, the safety valve can also be installed in a neighbouring room. If the discharge tundish is not directly connected to the safety group, a blow-off pipe must be installed between the safety group and the discharge tundish!Install an expansion vessel on the outlet side, if necessary It must be ensured that water flows through the expansion vessel (DIN 4807). Trouble shooting Fault Drips Cause While the water heater is heating Continuously drips due to soiling Remedy Not a fault, normal operation Turn the venting handle several times to rinse out dirt particles, or replace if necessary Completely open shut-off valves Adjust the pressure reducer with the knurled knob on the adjustment device Remove strainer bowl, exchange strainer Water pressure or water Shut-off valve on the inlet or outlet side not completely flow is zero or too low opened Pressure reducer not set to the desired target value Strainer in pressure reducer is soiled Appliance not mounted in the Mount the appliance in the direction of flow direction of flow Set outlet pressure does Expansion water from water not remain constant heater surges Close shut-off valve to feed line of hot water heater. Pressure reducer defect Check the non-return valve upstream of the water heater and, if necessary, the singlelever mixer tap. Exchange pressure reducer insert D06FA along with lip seal, and lubricate. [. . . ] Assemble in the reverse order lightly lubricate O-ring with silicone. 7 Maintenance of pressure reducer This should be carried out by the installation company. The time interval (1 3 years according to DIN 1988) depends on the onsite operating conditions. [. . . ]