Icma 1122 | Angle valve with thermostatic option

Thermostatic expansion valves are used to regulate and cut-off the flow of the heat transfer fluid that circulates inside airconditioning system
terminals (radiators, fan coils, etc.). Thermostat control devices are used in combination with the thermostatic expansion valves to automatically
regulate ambient temperature wherever they are installed, keeping the temperature at a preset value. This avoids the needless wasting of heat and
provides a considerable saving of energy.

ICMA thermostat control devices can be installed on all thermostatic expansion valves of this line to convert heating systems with manual operating
mode to automatic operating mode.
To install the thermostat control device, simply replace the thermostatic expansion valve knob with an ICMA thermostat control device. This is done
with a few easy operations. These are described in detail in the paragraph “Thermostat Control Device Installation and Regulation”.
The valves come in “straight” and “angled” versions so that they can be connected to two different types of pipes, at the side of the heating system:
− The valves with GAS thread (side of heating system) are designed for connection to a steel pipe.
− The valves with standard ICMA thread (side of heating system) are designed for connection to a copper pipe, a polyethylene pipe and a multi-layer
polyethylene pipe, for which specific pipe fittings are provided.
The valves are also equipped with a rubber, water-sealed socket. This allows the valve to be connected to the radiator easily and safely without
the use of a sealant. Pressure loss can be detected by following the indications provided in the diagrams shown in the paragraph “Fluid Dynamic
Characteristics”.

Install ICMA thermostatic expansion valves on the heating system making sure to observe the direction of flow. The fluid must enter from the side
on which the valve is connected to the system and go out toward the heating body.
The following problems can occur if the valve is installed incorrectly:
– A noise similar to a continuous sound of heavy hammering is due to the passage of fluid through the valve in the wrong direction. This problem can
only be solved by inverting the valve with holder on radiators that have this problem, thus restoring the correct direction of flow of the fluid inside
the valve.
– A noise similar to a sound of heavy whistling during the succession of specified on and off times is due to an excessive flow inside the valve. This
problem can be solved by keeping the system pressure under control, and equipping the system with variable rotation pumps along with differential
pressure regulators, or by making use of differential by-pass valves.

Thermostat control devices are used to regulate ambient temperatures automatically wherever they are installed so that the temperature is kept at
a preset value.
Residential and working environments often contain other sources of heat, such as electrical appliances,
stove-top cookers, computers, servers, and simple sunlight. Combined with the heating system, these
additional heat sources cause a needless, uncontrolled increase in ambient temperature and the wasting
of heat. Thermostat control devices detect variations in ambient temperature in the environments in which
they are installed making it possible to keep the heat supplied by the heating system at optimal temperatures
and to provide a considerable saving of energy.
The ICMA, 1100, thermostat control device can be installed on all thermostatic expansion valves of this line.
ICMA valves are supplied with the current manual control knob (for manual operation).
The valves can be converted into thermostatic valves that function completely automatically by installing a
thermostat control device.
To install the thermostat control device, simply remove the thermostatic expansion valve control knob and
replace it with the 1100 thermostat control device. This is done with just a few easy operations. These are
described in detail in the paragraph “Thermostat Control Device Installation and Regulation”

Performance
Fluids used: water and glycol solutions
Maximum percentage of glycol: 50%
Maximum operating pressure: 10 Bar
Maximum differential pressure: 1 Bar (with control device mounted)
Temperature of heat transfer fluid: 5 ÷ 120°C
Valve obturator travel: 3,5 mm
Connection with thermostat
control devices: 28 x 1,5

Materials
Body, cap and socket union brass CW617N – UNI 12165
Finish: chromed, white, matt black
Large screw: brass CW617N – UNI 12165
Spring and obturator control rod: Stainless steel
Liquid sealings: Peroxy EPDM
Control knob: ABS