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6

Notes for the installer

The SATK series HIU is designed for installation in a sheltered domestic environment (or similar), therefore it cannot be installed or used outdoors, 
i.e. in areas directly exposed to the weather. Outdoor installation may cause malfunctioning and hazards.
If the appliance is enclosed inside or between cabinets, sufficient space must be provided for routine maintenance procedures. It is recommended 
NOT to place electrical devices underneath the HIU, as they may be damaged in the event of leaks occurring at the hydraulic fittings. If this advice is 
not heeded, the manufacturer cannot be held responsible for any resulting damage.
In the event of a malfunction, fault or incorrect operation, the appliance should be deactivated; contact a qualified technician for assistance.

Hydraulic connections - reversibility

All versions of SATK22 series heat interface units (

with the exception of the LOW temperature version, code SATK2210.

) is reversible (top-

down). Installation in the two positions is possible with or without template code 789023.

Hydraulic installation

Preliminary operations - installation without template

After having established the point of installation of the appliance, perform the following operations: 
·  Mark the holes required for the bracket to secure the HIU to the wall
·  Mark the position of the hydraulic connections
Check the measurements again and, based on the above connection diagram and the dimensions shown on page 3, proceed with the installation 
of the following lines:

• Hydraulic:

1.  connection to the central system line
2.  heating circuit connection
3.  domestic water circuit connection
NOTE:
We recommend installing manual shut-off valves, especially on the connections to the primary line, thus allowing any necessary maintenance work 
to be carried out without having to empty the centralised system.
Before installation, it is recommended to carry out accurate flushing of all the pipes of the system in order to remove any residue or impurities that 
could endanger correct operation of the HIU.
In order to facilitate these operations a manual bypass flushing valve is available (code 789110).

Installation procedure (without template)

Secure the metal bracket supplied with the HIU to the wall using suitable wall anchors.

Summary of Contents for SATK22107

Page 1: ...mestic hot water capacity 50 kW 1 With primary pump SATK22405 Direct wall mounted HIU for HIGH temp heating Domestic hot water capacity 60 kW 1 With primary pump SATK22407 Direct wall mounted HIU for...

Page 2: ...acteristics of both units into consideration 10 An combination coupling could compromise the operation of the device and or system IMPORTANT Risk of electric shock Live parts Shut off the electric sup...

Page 3: ...primary circuit Dp 600 kPa 6 bar Domestic water circuit max flow rate 24 l min 0 4 l s Minimum flow rate to activate domestic water flow meter 2 l min 0 3 Electric supply 230 V ac 10 50Hz Max power c...

Page 4: ...r primary circuit air vent Characteristic components SATK2210 LOW temperature Hydraulic diagram SATK2210 and SATK2220 TS TA 2 V V V V V V 3 4 7 12 13 5 6 8 9 10 11 21 14 15 19 24 20 17 16 17 22 23 25...

Page 5: ...draulic diagram SATK2230 and SATK2240 TS TA 2 V V V V V V 3 4 7 12 13 5 6 8 9 10 11 21 14 15 19 24 20 17 16 17 22 23 25 TA 2 V V V V V V 3 4 7 5 6 8 9 10 11 21 13 14 19 22 20 23 16 17 18 SATK2210 only...

Page 6: ...out template code 789023 Hydraulic installation Preliminary operations installation without template After having established the point of installation of the appliance perform the following operation...

Page 7: ...bottom Connections on the top Heat meter installation The HIU is fitted to house a compact heat meter with incorporated return probe with 1 threaded connections and length of 130 mm Before carrying o...

Page 8: ...directed toward the exterior of the HIU using the pathways provided in the insulation and on the frame All the low voltage lines must be routed through a single dedicated cable raceway using the path...

Page 9: ...ntrol Refer to the dedicated user manual for the procedure Filling the central heating system Open the shut off valves on the connections to the centralised line and in the central heating system proc...

Page 10: ...riarmabile funzione scaldamassetto R mode ACS ON OFF Risc ON OFF set Ora giorno corrente Temperature di set point k regolazione climatica day night Set diurno nottu prog Programmazione oraria riscalda...

Page 11: ...oint k regolazione climatica day night Set diurno notturno temp Visualizzazione temperature set point ambiente sonde prog Programmazione oraria riscaldamento e funzione comfort reset Reset errore riar...

Page 12: ...ed the display shows the symbol OPTIONAL SETTING weather compensation technical parameter t01 3 When the function is enabled the flow temperature is calculated based on the temperature detected by the...

Page 13: ...menu see access to technical menu below Parameter t07 1 freezes the operating set points to prevent inadvertent modifications by the user The comfort function can be alternatively preheating of the DH...

Page 14: ...ntrolling the maximum opening of the primary circuit modulating valve Since latter is controlled by a differential pressure limiter it is possible to supply direct correspondence between the opening p...

Page 15: ...wo seconds and then press the same key repeatedly until reaching the required characteristic refer to the figure below Having identified the required characteristic head flow rate chart shown below wa...

Page 16: ...xternal primary flow pump normally OFF The contact must be closed if any HIU function is active DHW production heating pre heating Parameter t05 must be set to 1 2 4 7 example 2 Distinction of consump...

Page 17: ...ire twisted cable Compliance with this requirement becomes even more significant the more extensive the RS 485 network If alternatively a shielded wire is used the shield must be connected solely on t...

Page 18: ...code 76 Corrective action Normal operating conditions are restored automatically once the faulty safety valve works properly again reriscaldo circolo Impostazione default limitazione portata massima...

Page 19: ...PAID AUX RS 4 IN IN IN OUT IN OUT EXP PORT OTS RT PREPAID AUX RS 485 BUS IN IN IN OUT IN OUT EXP PORT OTS RT PREPAID AUX RS 485 BUS IN IN IN OUT IN OUT EXP PORT OTS RT PREPAID AUX RS 485 BUS IN IN IN...

Page 20: ...pty the heat interface unit using the drain cocks provided Exchanger replacement As a preliminary step remove the flow sensor refer to replacing the DHW priority flow meter on page 21 and position it...

Page 21: ...e previous paragraph Extract the obturator unscrewing the locking nut F Replace the obturator screw on the locking nut F and then fit the actuator Insert the fixing clip respecting the correct directi...

Page 22: ...ature set point disable the function primary circuit strainer of the HIU clogged call qualified personnel to have it serviced exchanger partly clogged call qualified personnel to have it serviced modu...

Page 23: ...on in charge of system electronic regulator not working call qualified personnel to have it replaced primary circuit flow rate insufficient contact person in charge of system centralised system not wo...

Page 24: ...if required been carried out 13 Has the remote user interface been configured for installation on board thermostat function disabled inside the apartment with thermostat function enabled 14 Have the h...

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