TEMPERATURE ADJUSTMENT UNIT ARTICLE: K062 - K063 - …

TECHNICAL DATA SHEET 10/2017 - ENG

ICMA S.p.a. via Garavaglia, 4 20012 Cuggiono (MI) – ITALIA Tel. +39 02 97249134 / +39 02 97249135 www.icmaspa.it e-mail: [email protected] pag. 1

TEMPERATURE ADJUSTMENT UNIT ARTICLE: K062 - K063 - M055 - M058 - M059

FUNCTION

The temperature adjustment and mixing units described in this document have been designed for application in radiating panel process plants, in combination with distribution headers. Their function is to keep the delivery temperature of the fluid distributed constant, at the preset value, inside a low temperature radiating panel system. The temperature is adjusted by means of a two- or three-way thermostatic valve equipped with a thermostat control device with a remote sensor.

TECHNICAL FEATURES

TECHNICAL DATA:

Fluids used: Water and glycol solutions Maximum percentage of glycol: 30% Primary input temperature range: 5÷100°C Temperature adjustment range: 20÷50°C Thermometers scale: 0÷60°C Maximum operating pressure: 10 bar Minimum operating pressure: 0,8 bar Power supply: 230 V – 50 Hz Circolators: See specifications pag.8/9

MATERIALS:

Valve body and fittings: Brass CW617N - UNI EN 12165 Caps and unions: Brass CW617N - UNI EN 12165 Thermometers: Steel/Aluminium Sealing elements: EPDM Perox

CONNECTIONS:

Primary circuit connections (boiler): G1/2” F (articles M058-M059) Primary circuit connections (boiler): G1” M (article M055) Secondary circuit connections (collectors): G1” M

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ART. K062 – RETURN PUMP UNIT

Return pump unit, includes:

1) Adjustable, hand-operated air vent valve 2) Thermometer (0-60°C) 3) Circulator 4) Safety thermostat (item P310) 5) Sensor slot 6) System loading/discharge valve 7) G1” pipe unions with O-ring seal for collector

Collector connections: G1” Male Can be installed on either the left or right side of collectors. The pre-assembled units are supplied with three different pump models:

- GRUNDFOS - UPSO 25-65 130 - Synchronous circ. pump 3 speeds - GRUNDFOS - UPS2 25-40/60 130 - Circulation pump with 3 speeds - GRUNDFOS - UPM3 HYBRID 25-70 130 – Electronic circulation pump

DIMENSIONS

2

1

7

3

5 4

7

6






CARATTERISTICHE IDRAULICHE






ART. K063 - FIXED POINT ADJUSTMENT UNIT

Fixed point temperature adjustment unit, includes:

1) Thermostat control device (20-50°) with remote sensor 2) Three-way mixing valve 3) Flow meter 4) Manually adjusted by-pass valve 5) Sensor slot 6) G1” pipe unions with O-Ring seal for collector

Collector connections: G1” Male. Can be installed on either the left or right side of collector. DIMENSIONS

130

RETURN BOILER

RETURN SYSTEM

DELIVERY BOILER

DELIVERY SYSTEM

FLOW DIRECTION

5

4

6

3 6

6

6

2

1












MIXING VALVE ADJUSTMENT

The fixed point adjustment unit is supplied with a thermostat control device with remote sensor, which is to be installed on the 3-way valve. By regulating the thermostat control device, it is possible to set the temperature of the heat transfer fluid that circulates inside the low temperature circuit of the radiating panels. The thermostat control device has an adjustment range of between 20° and 50°C. A temperature of about 35-40° should be set on the hand wheel with graduated scale (see the instruction sheet contained in the control device container for a detailed description of how to adjust the thermostat control device). Instead, the 3-way mixing valve is equipped with a “double adjustment” function which makes it possible to limit the amount of water that flows into the low temperature system when the mixing valve is completely open. The “double adjustment” function is set in the factory during mixing valve inspection. The setting should never be changed except under exceptional circumstances. To change the setting of the “double adjustment” feature, you must first remove the white cap or the thermostat control device located on the mixing valve (the valve appears as shown in Fig. A). This is done by inserting a shear screwdriver in the slot on the black pin (see red arrow in Fig. B), and then rotating the pin to change the mixing valve setting, as indicated below:

- turn the black pin in the clockwise direction to shut off the flow of the heat transfer fluid to the low temperature system; this limits the flow to a maximum value even when the mixing valve is in the completely open position.

- turn the black pin in the counter-clockwise direction to open the flow of the heat transfer fluid to the low temperature system; this increases the maximum amount of water that is allowed to flow into the low temperature circuit when the mixing valve is in the completely open position.

ADJUSTMENT OF BY-PASS VALVE

With the manually adjusted by-pass valve, it is possible to regulate the circulation of the heat transfer fluid coming from the heat generator in the event the mixing valve is completely closed and does not allow any fluid to flow to the low temperature circuit collector of the radiating panels. For a standard adjustment of the by-pass valve, close the valve completely by turning the white hand wheel clockwise (indicated by blue arrow in Fig. C) to its end stop and then open it by 1 1/5 turns by rotating the hand wheel in the counter-clockwise direction.

DIRECTION OF MIXING VALVE FLOW

OPEN VALVE CLOSED VALVE

Figure A

Figure C

Figure B






ART. M055 - MIXING UNIT

Fixed point mixing unit includes:

1) Return pump unit - item K062

2) Fixed point adjustment unit – item K063 See previous pages for technical specifications regarding these two components and any circulators to be used with them. INSTALLATION DIAGRAM

RETURN HEATING FLOOR

DELIVERY HEATING FLOOR

DELIVERYBOILER

RETURN BOILER

1 2












ART. M058 - MIXING UNIT Fixed point mixing unit with delivery to boiler on the lower left side and return to boiler at bottom includes:

1) Thermostat control device (20-50°C) with remote sensor 2) Fixed point thermostatic valve 3) Holder for fluid return to boiler 4) Automatic air vent valve 5) Circulator 6) Thermometers (0-60°C) 7) Sensor slot 8) Valve for system delivery/discharge 9) G1” pipe unions with O-Ring seal for collector

Boiler circuit connections: G½” Female Collector connections: G1” Male Can be installed either on the left or right side of collectors.

The pre-assembled units are supplied with three different pump models:

- GRUNDFOS - UPSO 25-65 130 - Synchronous circulation pump with 3 speeds - GRUNDFOS - UPS2 25-40/60 130 - Circulation pump with 3 speeds - GRUNDFOS - UPM3 HYBRID 25-70 130 – Electronic circulation pump

INSTALLATION DIAGRAM AND DIMENSIONS

DELIVERY SYSTEM

RETURN SYSTEM

RETURN BOILER

DELIVERYBOILER

4 6

9

5

9

7

3

1

8

2

6












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ART. M059 - MIXING UNIT

Fixed point mixing unit with boiler delivery and return at bottom, includes:

1) Thermostat control device (20-50°C) with remote sensor 2) Fixed point thermostatic valve 3) Holder for boiler return 4) Automatic air vent valve 5) Circulator 6) Thermometers (0-60°C) 7) Sensor slot 8) Valve for system loading/discharge 9) G1” pipe unions with O-ring seal for collector

Boiler circuit connections: G½” Female Collector connections: G1” Male Can be installed either on the left or the right side of collectors.

The pre-assembled units are supplied with three different pump models:

- GRUNDFOS - UPSO 25-65 130 - Synchronous circulation pump with 3 speeds - GRUNDFOS - UPS2 25-40/60 130 - Circulation pump with 3 speeds - GRUNDFOS - UPM3 HYBRID 25-70 130 – Electronic circulation pump

INSTALLATION DIAGRAM AND DIMENSIONS

DELIVERY SYSTEM

RETURN SYSTEM

RETURN BOILER

DELIVERYBOILER

6

7 9

5

4

9

6

8

2

1 3












CIRCOLATORS RANGE

ARTICLE: P321

Synchronous circulation pump with 3 speeds

Hydraulic characteristics

Technical specifications

Brand: Grundfos Model: UPSO 25 – 65 130 mm Centre to centre distance: 130 mm Connections: G 1”1/2 M Electrical power supply: 230V – 50Hz Operating temperature: +2°C ÷ +110°C. Max operating pressure: 10 bar Protection level: IP44

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ARTICLE: P326

Circulation pump with 3 speeds


ARTICLE: P328

Circolator with PP (proportional pressure), CP (constant pressure) CC (constant curves), PWM (profile A o C), AA (auto adapt)



Brand: Grundfos Model: UPM3 HYBRID 25-70 130 Centre to centre distance: 130 mm Connections: G 1”1/2 M Electrical power supply: 230V – 50Hz Operating temperature: +2°C / 110°C. Max operating pressure: 10 bar Protection level: IP44 Energy class (EEI): ≤0.20 Part 3 PWM signal cable code: C64P3280153 (NOT INCLUDED)


Brand: Grundfos Model: UPS2 25-40/60 130 Centre to centre distance: 130 mm Connections: G 1”1/2 M Electrical power supply: 230V – 50Hz Operating temperature: +2° / +95°C. Max operating pressure: 10 bar Protection level: IP44 Energy class (EEI): ≤0.23






INSTALLATION DIAGRAM

The following diagram indicates how to install a fixed point mixing unit (item M055) on a heating system consisting of low temperature radiating panels and high temperature radiators. The fixed point mixing unit is connected directly to the boiler and feeds both the low temperature outlets for radiating panels and the high temperature outlets of radiators or towel heaters by means of linear collectors equipped with flow meters and cut-off valves. The delivery pipes running from the boiler to the system are indicated in red, while the return pipes from the system to the boiler are indicated in blue.

RT – Room Thermostat BO - Boiler

RT

BO






SAFETY

Before starting the equipment, carefully read the assembly and start-up instructions, to prevent any accidents or failures of the system resulting from improper use of the product. It must be pointed out that non authorized modifications or tampering with during the assembly and construction stages may lead to the forfeiture of the right to the guarantee. In addition to the directives stated above, the following rules must be followed:

DIN 4751 Water heating systems

DIN 4757 Solar heating systems

DIN 18380 Heating systems and sanitary water heating systems

DIN 18382 Electric and running systems in buildings

DIN 12975 Thermal solar systems and relevant construction

OPERATION CONDITIONS

The limit values shown MUST IN NO WAY be exceeded. The operation safety conditions are therefore assured by respecting the general conditions and the operation limit values described in this sheet.

SAFETY RULES FOR ASSEMBLY AND INSPECTION

The assembly and inspection operations shall be carried out by qualified personnel, duly authorized and well aware of the instructions described herein. Before starting any works on the devices and equipment, it is important to check that they are switched off.

ELECTRIC CONNECTIONS

The electric connections shall be carried out by qualified personnel. Before powering the mixing and circulation group, check that the voltage type and values supplied by the electric grid meet the data on the manufacturer’s plate. All connections shall be made as prescribed by law.

MAINTENANCE

The maintenance operations shall be carried out by qualified personnel, duly authorized and well aware of the instructions described herein. Before starting any works on the equipment, it is important to check that they are switched off. Should the pump be replaced, rotate the on/off valve to closed position.

Warning! The surface temperature could reach very high values, according to the operation conditions of the pumps and to the features of the system. Therefore, DO NOT touch the pump directly. Danger of burns!

CONFORMITY STATEMENT’ (CE)

The circulating units provided with the ICMA mixing and circulation groups comply with the following harmonizing directives:

CEE Machine Directives 89/392/CEE, 91/368/CEE, 93/44/CEE, 93/68/CEE. Electromagnetic compatibility 89/336/CEE, 92/31/CEE, 93/68/CEE General harmonized standards EN 809, EN 50081-1, EN 50081-2, EN 50082-1, EN 50082-2.



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TEMPERATURE ADJUSTMENT UNIT ARTICLE: K062 - K063 - …