Legend - Frico TKW20 Installation Manual

24 TKW
"Hydronic Ceiling Cassette" Fan Coil Units

Legend

Fig.1.
A
- Unit
B
- Frame/Grille assembly
Fig.15.
1 - Heating: louvre position for correct air
flow
2 - Cooling: louvre position for correct air
flow
Warning
To close one or two air outlets use the special
kit
Fig.18.
1 - Nut
2 - Wooden frame
3 - Threaded hangers
4 - Washers
5 - Nut
6 - Washers
7 - Threaded hangers
8 - Washers
9 - Nut
10 - Nut
Fig.19.
7 - Threaded hangers
11 - "T" bar (to be removed)
Fig.20.
7 - Threaded hangers
11 - "T" bar (to be removed)
12 - Suspension brackets
18 - Electrical box
Fig.21.
13 - False ceiling
14 - Spirit level
Fig.24.
15 - Frame pre-hooking support
16 - Safety belt
17 - Frame supporting nuts and spacers
Fig.25.
3 - Gasket "A"
4 - Gasket "B"
5 - Air discharge
Fig.26-27.
1 - Cold circuit water inlet
2 - Cold circuit water outlet
3 - Air purge valve
4 - Hot circuit water inlet
5 - Hot circuit water outlet
Fig.28.
See section "Motorized valve"
Fig.31.
Automatic operation position
6 - Valve body
7 - Thermo-electric valve head
Fig.32.
Electric heater protections
1 - Manual reset thermostat
2 - Automatic reset thermostat
Fig.35.-36. Standard.
18 - Electrical box
19 -
Cable holder
20 -
Terminal block
21 -
Electric heater relay
22 -
Capacitor
24 -
Valve cable inlet
25 - Power supply cable
26 - Control cable
Fig.37. Standard with valves
27 - Cold valve cables
28 - Hot valve cables (4 pipes only)
Fig. 38. "IR Control"
18 - Electrical box
19 - Cable holder
20 - Terminal block
21 - Electric heater relay
22 - Capacitor
29 - Transformer
30 - "IR Control" board
Fig. 39. "IR Control" and brushless motor
18 - Electrical box
19 - Cable holder
20 - Terminal block
21 - Electric heater relay
22 - Capacitor
25 - Power supply cable
29 - Transformer
30 - "IR Control" board
31 - EC motor board
Fig.39e. Brush less motor with heaters
Fig.40e.
Winter operation diagram with fresh air intake
15 - Antifreeze thermostat
16 - Speed controller
17 - Fresh air fan motor
18 - Relay 230V
a= neutral
b= cooling signal 230V
c= heating signal 230V
Fig.44.
Air intake grille
10 - Wall
11 - Undercut door
12 - Wall-fitted grille
13 - Door-fitted grille
Fig.45.
10 - Duct connection flange
11 - Clip
12 - 6 mm neoprene gasket
13 - Insulated flexible duct
14 - Fresh air intake
15 - Conditioned air supply to an adjacent room
Fig.47.
Diagram of conditioned air supply to an adjacent room:
one louvre closed
19 - Supply air duct to adjacent room
In case of two louvres closed, the fresh air flow towards
the adjacent room is 50% higher compared with only
one louvre closed (with equal static external pressure)
Fig.48.
Filter cleaning