Modular ductable air handling terminal units.

Construction features

• Terminal air handling unit: with modular units for horizontal or vertical installation (013-050) with ducting.
• Structure with double wall sandwich type freestanding panelling, 30mm-thick with closed cell expanded polyurethane insulation with high soundproofing and thermal insulation capacity.
• Routine machine maintenance from the bottom (for the horizontal version with installation in false ceiling or hanging from ceiling) or frontally (for the vertical version) with removable panels.
• Coil module BA (horizontal) / coil module BAV (vertical up to size 050) including: standard ISO Coarse Filter 55% (G4), All filters are supplied complete with differential pressure switch to signal filter clogging condition in compliance with European regulation no. 1253/2014.
Finned coil heat exchanger, with copper pipes and 2 rows of aluminium fins for heating or reheating only and 4-6 rows for cooling and/or heating with right or left connections to be selected with order. Condensate drain pan in aluminium both for horizontal BA4R and BA6R versions and vertical BAV4R and BAV6R versions.
• SV fan module complete with EC Brushless centrifugal plenum fan with single intake directly coupled to electric motor efficiency class IE5. Static and dynamic balancing of the entire assembly, built in accordance with standard DIN ISO 1940. G6.3 balancing grade. Standard control of the rotation speed via special 0-10V analogue input. Electrical connection panel fitted as standard complete with disconnect switch, protection fuses and connecting terminal block.

Factory fitted accessories

• AIRSUITE G4- Iso Coarse Filter 55% (ISO 16890) G4 (EN 779) Airsuite with biocide capacity
• F7 – Fine dust filter Iso ePM1 50% ( ISO 16890) F7 (EN 779)
• SG – Optional polypropylene drop separator at low load losses.
• TAG – Optional antifreeze thermostat.

Accessory modules
• PMA – Intake/outlet plenum with pre-cut side outlets.
• SIL – Plenum with absorbent cartridge silencer to be placed on inlet or outlet.
• MUV-PRV – Plenum with steam humidifier and external electric generator.
• BE – Additional electrical coil for connection to channel.

Separately supplied accessories

• KSG – Polypropylene drop separator at low load losses (only for BA).
• KTAG – Antifreeze thermostat (only for BA).
• KSER – Kit in combination with PMA consisting of: damper with aluminium blades and frame, fitted with seal gasket, certified class 2 according to En 1751 for fresh air (max 30%) or recirculated air and a fastening panel to PMA module. The damper is sized for treating up to 100% of the UTNA air capacity and may be positioned at the front, top or bottom of the PMA.
• KMS – Manual control for KSER damper.
• KB2R – Separately supplied additional reheat coil.

Controls

• KPTZ – Rotating potentiometer for wall mounting installation, dedicated to manual fan speed control. The speed of delivery and return fans is calibrated with a single potentiometer.
• KTVDIM – Electronic control panel with display, for semi-recessed wall installation, including ON/OFF button, MODE, 3 Speeds+AUTO, SETPOINT change; auxiliary contacts to control ON/OFF valve in 2-pipe and 4-pipe systems; summer/winter switching; manual/automatic/from contact; continuous/thermostat ventilation; configurable digital inputs (SCR, ECO, SIC, ALARM), weekly time bands management., complete with RS485 resident serial interface (Modbus RTU protocol).
• KRCA1 – Electronic control panel with display, for semi-recessed wall installation, including ON/OFF button, MODE, 2 Speeds, SETPOINT change; summer/winter switching with button or remote digital input; continuous ventilation, weekly time bands management room probe; 3 analogue outputs to control modulating fan, 1 or 2 modulating valves in 2-pipe or 4-pipe systems, modulating damper; 1 auxiliary contact to control on/off electrical resistance (1 stage) in 2-pipe systems + electrical resistance; 2 configurable digital inputs and 2 configurable analogue inputs. Compete with RS485 resident serial interface (Modbus RTU protocol).
• KPAU – Humidistat panel for PRV steam producer control.

Full Controls

• KRFCS – Electrical panel complete with: DDC programmable microprocessor regulator. BMS interfacing Integrated as standard with Modbus RTU protocol, main disconnecting switch, relay to control various users, terminal blocks for quick connection of all machine components, auxiliary circuit supply with suitable transformer 230/12-24V.

USER PANELS (for KRFCS)
• KHMIG -Interface terminal with black monochrome graphic display with LED backlighting.
• KHMIR – Interface terminal complete with integrated room temperature probe with black monochrome graphic display with LED backlighting.
• KCW – White decorative plate for control panel.
• KCB – Black decorative plate for control panel.
• KWMS – Wall mounting installation support for control panel.

Valves and actuators
• KV3V – PN40 Mixer/diverter 3-way regulation ball valves, female threaded hydraulic connections.
• KV2V – PN40 2-way regulation ball valves, female threaded hydraulic connections.
• KVMM – Actuator for ball regulation valves with modulating control 0/10 Vdc 24 Vac power supply.
• KV0M – Actuator for 230V On/Off valves.
• KDMA-S – Actuator for modulating damper 0-10V 24V with spring return.
• KDMA – Actuator for modulating damper 0-10V 24V without spring return.
• KDOA – Actuator for ON/OFF damper with spring return.
All the probes, actuators and valves on the Full Control section are also available.