CTS602 HMI Touch panel

Standard Nilan control system with HMI Touch panel — graphical interface for ventilation steps, temperature setpoints, hot water schedule, and humidity control. Wall-mountable in living space or utility room. Multi-language support including English. Visual filter change reminder, alarm log, and energy consumption monitoring.

Nilan app · iOS / Android

Free Nilan mobile app for remote monitoring and control. Adjust ventilation step, change hot water setpoint, view alarm status, and monitor system performance — at home or away. Filter change reminders pushed to the app automatically when due. Single account supports multiple buildings — useful for landlords or property managers.

Nilan service portal

Optional remote service portal for ongoing monitoring by property managers, landlords, or maintenance teams. Diagnose issues remotely without site visit. Particularly useful for multi-unit residential developments — A2Dominion-style schemes where one operator manages dozens of Compact P installs across a development.

Modbus TCP/IP + RS485

Open Modbus communication standard — both TCP/IP (Ethernet) and RS485 RTU (serial) supported. Bidirectional — BMS can monitor every parameter and write settings, not just read status. Direct integration with Loxone, KNX (via gateway), Crestron, Niagara, or any Modbus-compatible BMS. Default protocol set to Modbus TCP/IP.

Intelligent humidity control

Built-in humidity sensor on the extract air circuit. CTS602 controller automatically increases ventilation when humidity rises (showers, cooking) and reduces ventilation in winter when indoor air is too dry. Adjustable threshold per room or whole-house. Reduces condensation risk and improves comfort without manual intervention. Standard on every Compact P.

CO₂ sensor (optional)

Optional Korea Digital SenseCube CO₂ sensor for demand-controlled ventilation. Increases airflow when occupancy raises CO₂ levels, drops to baseline when room is empty. NDIR dual-wavelength sensor, RS485 / 4–20mA / 0–10V outputs. Most useful for variable-occupancy spaces — guest rooms, home offices, multi-unit residential.

Heating circuit + AIR9 control

CTS602 manages the AIR9 outdoor heat pump, indoor circulation pump, buffer tank, and electric auxiliary heating elements as a coordinated system. Adjusts heat output continuously based on UFH or radiator demand. Compatible with weather compensation curves, room thermostats, and zone valves. Automatic legionella protection on the hot water tank as standard.

UFH zone + room thermostat integration

AIR9 supports per-room thermostats and zone valves on the UFH manifold. CTS602 reads room temperature feedback and modulates flow temperature accordingly. Weather compensation logic drops flow temperature in mild conditions to maximise heat pump efficiency. Cooker hood input, fireplace interlock, and external user-select inputs work the same way as standard Compact P.

Compact P AIR9 — anchor configuration

Indoor unit (Compact P architecture) plus outdoor air-to-water heat pump module (~9 kW). Family Passivhaus territory — 140–200+ m². 275 m³/h max airflow, 95% passive heat recovery, 180L hot water tank, reversible cooling. Single-phase 230V indoors, dedicated heat pump circuit outdoors. CTS602 control. Variable-compressor outdoor unit. Buffer tank and 2 × 2 kW auxiliary heating included.

Step down — Compact P (air-only)

For projects where waterborne heating is not required, standard Compact P delivers air-only heating from the MVHR-side heat pump (no outdoor unit). The right pick for compact Passivhaus, apartments, and projects where airtightness and Passivhaus envelope make air-heating sufficient. No outdoor unit, single-cabinet install. Quote on request.

Step up — Compact P GEO 3 / 6 / 9

For projects with land for ground loops, GEO variants replace the air-to-water outdoor unit with a ground-source heat pump (3 kW, 6 kW, or 9 kW). Ground temperature is more stable than air — meaningfully higher seasonal efficiency than AIR9 at lower outdoor temperatures. Higher capital cost (groundworks), better long-term running costs. Quote on request.

Step up — Compact P XL

For larger family Passivhaus or multi-unit installations, Compact P XL scales airflow to 430 m³/h vs 275 m³/h on standard AIR9. Combines with AIR9 or GEO modules for waterborne heating. Same modular architecture, same heat recovery, same hot water tank. Right pick for 4+ bedroom Passivhaus, multi-occupancy schemes, or commercial offices with elevated fresh-air demand. Quote on request.

Polar variant for cold-climate sites

For exposed cold-climate installations (highland Scotland, Cumbria, sites above 200m elevation), AIR9 can be specified with a Polar pre-heater on the MVHR-side outdoor air intake. Protects the passive heat exchanger from icing during severe frost. Outdoor heat pump module continues operating at lower outdoor temperatures with appropriate defrost cycles. Specified at order based on site exposure.

Buffer tank · 50L standard

AIR9 indoor unit includes a 50-litre buffer tank in the central heating circuit by default — smooths heat pump cycling, reduces compressor wear, improves comfort during heat-up periods. Larger buffer tank options available for high-demand installs (multiple zones, large UFH areas). CleverBloom designs buffer sizing as part of the project brief.

UFH design + manifold integration

CleverBloom designs UFH layout alongside AIR9 — manifold positioning, zone valves, room thermostats, low-temperature pipework runs. Per-room control, weather compensation, and AIR9 flow-temperature optimisation engineered as a coordinated system. Suitable for ground-floor UFH only, or whole-house UFH including first-floor screed or bare-floor systems.

Filter upgrade options

Standard ISO Coarse / G4-equivalent filters fitted (75% pollen, dust, soot capture). Optional upgrade to F7 fine particulate filters (ePM1 70%) for households with allergy or asthma sensitivity, or installs in high-traffic urban areas (London, motorway proximity). Front-loading filter access — homeowner-replaceable in 5 minutes. CTS602 flags filter change automatically.

Nilan manufacturer warranty

Standard Nilan manufacturer warranty applies — typically 2 years on full unit with extended coverage on heat pump and major components. Terms confirmed at order against current Nilan general conditions. Compact P installs covered through Nilan UK / Project Ziro Ltd, with their service portal supporting fault diagnosis and warranty claims directly.

Filter change · adjustable schedule

CTS602 filter timer adjustable from 30 to 180 days. Automatic alarm when filters due. Front-loading access via top front panel — homeowner-replaceable in 5 minutes, no tools. Standard ISO Coarse / G4 filters, optional F7 upgrade for allergy-sensitive households or high-pollution urban installs. Genuine Nilan replacement filters via Nilan UK service portal.

Electronically monitored anode

Sacrificial anode in the 180L hot water tank with electronic monitoring — CTS602 alarms when replacement is due (typically 5–10 years depending on water chemistry). Unlike unmonitored anodes that fail silently and damage the tank, the alarm prevents corrosion. Hard water areas may need more frequent replacement; soft water areas extend service life.

Automatic anti-legionella cycle

CTS602 boosts the hot water tank temperature to over 60°C automatically once weekly via the integrated immersion heater — kills any legionella that could grow during normal operation at 45–50°C. Required for Building Regulations Part G compliance. Boost cycle runs at off-peak hours to minimise electricity cost. No homeowner action needed.

Heat exchanger + outdoor unit service

MVHR-side counterflow heat exchanger requires no active maintenance — annual visual check during service visits. AIR9 outdoor unit benefits from annual service: visual check of refrigerant connections, condenser fin cleaning if visible debris, drainage check around unit. F-Gas registered engineer required for any refrigerant work. Refrigerant circuit hermetically sealed at factory.

CleverBloom Passivhaus service plan

For Compact P installs, CleverBloom offers an annual service plan covering: filter changes (parts and labour), anode status verification, control parameter review, ventilation airflow re-balance check, Nilan app account audit, and CTS602 firmware version review. Quoted per project based on access and SLA requirements. Multi-unit residential pricing available.