Installation
Before installing a Caleffi AngleMix 520 series three-way thermostatic mixing valve, the system
must be inspected to ensure that its operating conditions are within the range of the mixing
valve, checking, for example, the supply temperature, supply pressure, etc.
Systems where the 520 series thermostatic mixing valve will be installed must be drained and
cleaned out to remove any dirt or debris which may have accumulated during installation.
The installation of appropriately sized filters at the inlet from the main water supply is always
advisable.
Caleffi AngleMix 520 series thermostatic mixing valves must be installed by qualified personnel
in accordance with the diagrams in this brochure, taking into account all current applicable
standards.
Caleffi AngleMix 520 series thermostatic mixing valves can be installed in any position, either
vertical or horizontal, or upside down.
The following are shown on the thermostatic mixing valve body:
- Hot water inlet, color red and marked “HOT”.
- Cold water inlet, color blue and marked “COLD”.
- Mixed water outlet, marked “MIX”.
Locking the setting
Position the handle to the number required with
respect to the index point. Unscrew the head screw,
pull off the handle and reposition it so that the handle
fits into the internal slot of the knob. Tighten the
head screw.
Check valve
In systems with thermostatic mixing valves, check valves should be installed to prevent
undesired backflow. In order to prevent undersirable backsiphonage, separate check valves
should be installed in systems with code “520 A” model thermostatic mixing valves (these
models do not contain integral check valves in the hot and cold inlet ports). As a convenience
for easier installations, the Caleffi code “520 AC” model series thermostatic mixing valves
include integral check valves in the hot and cold inlet ports.
NOTE TO INSTALLER: DO NOT TEST FIT OR INSTALL CHECK VALVES BEFORE
SOLDERING. IF INSTALLED, REMOVAL WILL REQUIRE DAMAGING THE CHECK VALVE
AND IT WILL NO LONGER BE USABLE.
MIN
MAX
7
1
2
3
Index Point
·
Installation Tip
Scan to view
520 AngleMix™
6
Summary of Contents for AngleMix 520 Series
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