Accessories; 2- Or 3-Way Motor-Driven Valve Kits; 2-Way Valve Kit; Control Valves - Galletti ACQVARIA i-Serie Installations-, Bedienungs- Und Wartungsanleitung

8

ACCESSORIES

8.1

2- OR 3-WAY MOTOR-DRIVEN VALVE KITS

WARNING: The installation of a valve kit on the fan coil unit
is mandatory ACQVARIA.
The kit is made up of:
Ū Brass 2- or 3-way valve with 4 connections with built-in by-
pass, maximum operating pressure 16 bar.
Ū Electrothermal actuator with 230 V or 24 V power supply,
ON/OFF (or modulating) function, total opening time 3 min-
utes.
Ū Hydraulic kit with O-ring for connection with the exchanger
and paper gasket for connection with the valve
Ū Brackets for fastening the hydraulic kit on the side of the unit
in order to ensure stability during transport if the valves are
already installed.
Unit
AQ10B0, AQ20B0, AQ30B0 (2 pipes)
AQ40B0, AQ50B0, AQ60B0 (2 pipes)
Unit
AQ10BB, AQ30BB (4 pipes)
AQ40BB, AQ60BB (4 pipes)
Unit
AQ10B0, AQ20B0, AQ30B0 (2 pipes) 2-way
AQ40B0, AQ50B0, AQ60B0 (2 pipes) 2-way
Unit
AQ10BB, AQ30BB (4 pipes)
AQ40BB, AQ60BB (4 pipes)
8.2 PRESSURE-INDEPENDENT MOTOR-DRIVEN 2-WAY VALVE KIT
WARNING: The installation of a valve kit on the fan coil unit
is mandatory ACQVARIA.
The pressure-independent 2-way valve kit consists of:
Ū 2-way valve with maximum operating pressure of 16 bar.
Ū Electrothermal actuator with 230 V or 24 V power supply,
ON/OFF (or modulating) function, total opening time 3 min-
utes.
Unit
AQ10B0, AQ20B0, AQ30B0 (2 pipes) 2-way
AQ40B0, AQ50B0, AQ60B0 (2 pipes) 2-way
Unit
AQ10BB, AQ30BB (4 pipes)
AQ40BB, AQ60BB (4 pipes)
8.3 AUXILIARY WATER DRIP TRAY FOR COLLECTING CONDENSATE FROM THE CONTROL VALVES
The auxiliary water drip tray is supplied with the base unit to-
gether with two fastening screws.
Its function is to collect the condensate generated by the control
valves and to convey it inside the main condensate drip tray of
the unit. (FIGURE 15, FIGURE 16)
34
ACQVARIA I
Valve type Connection
3-way 3/4'' M
3-way 3/4'' M
Cooling
Valve type Connection
3-way 3/4'' M
3-way 3/4'' M
Valve type
Valve type
2-way
2-way
Valve type Connection
3/4'' M
1 1/4 '' M
Cooling
Valve type Connection
2-way 3/4'' M
2-way 1 1/4 '' M
NOTE: for units AQ10-AQ20-AQ30 it is necessary to install
the 3-way valves inclined so as to comply with the space
constraint regarding the height of the base unit.
The valve kits are shown in the figures from page: .
Pressure drops of the valve/hydraulic kit assembly are calculated
using the following formula:
∆P = (Q / K ) 2
W W V
Where:
∆P = pressure drop in kg/cm
W
Q = water flow rate in m
W
K = water flow rate coefficient of the valve obtained from
V
the table
Kvs straight
2,5
4
Heating
KVS direct way Kvs by-pass Connection
2,5 1,6 3/4'' M
4 1,6 3/4'' M
Connection
3/4'' M
3/4'' M
Cooling
Connection KVS
3/4'' M 2,8
3/4'' M 4
Ū Hydraulic kit with O-ring for connection with the exchanger
and paper gasket for connection with the valve.
Ū Brackets for fastening the hydraulic kit on the side of the unit
in order to ensure stability during transport if the valves are
already installed.
The valve kits are shown in the figures on page:p. 116 , p. 119,
p. 118 and p. 121.
Δp min [kPa]
32
20
Heating
Δp min [kPa] Connection
16 3/4'' M
20 1'' M
2
3 /h
Kvs by-pass
1,6
1,6
KVS direct way Kvs by-pass
2,5 1,6
2,5 1,6
KVS
2,8
4
Heating
Connection KVS
3/4'' M 2,8
3/4'' M 2,8
Δp min [kPa]
16
16