Pompa di calore Hydro-Pro (Tipo 18): vista esplosa e ricambi

Pompa di calore Hydro-Pro (Tipo 18): vista esplosa e ricambi

This page presents the full exploded-view diagram and bill of materials for the Hydro-Pro Heat Pump Type 18, factory reference 7018526. The Type 18 is a horizontal-format, single-phase pool heat pump from the Hydro-Pro ABS range — a well-established family of air-source units designed to heat swimming pool water across an extended season. The diagram shows every internal and external component in its fitted position, from the refrigeration circuit and titanium heat exchanger through to the electrical box and control display. Use the numbered call-outs alongside the parts list below to pinpoint the exact part you need in a matter of minutes.

Come utilizzare lo schema numerato per individuare il proprio componente

Every numbered call-out printed on the diagram corresponds directly to a row in the parts table below it; locate the area of the unit that concerns you — water circuit, refrigeration pipework, electrical box, or casing — then find the matching call-out number in that zone. Once you have the position number, look it up in the table to read the full part description and, where one is available, the SKU you can add straight to your basket. Bear in mind that some position numbers appear more than once in the diagram: positions 11 and 16, for example, both refer to the same water connection set (SKU 7014127), one on the inlet side and one on the outlet side of the unit. Pay close attention to lettered suffixes — position 10 is split into 10a, 10b, and 10c, each representing a distinct display or housing variant, and position 54 is split into 54a (low-pressure switch) and 54b (high-pressure switch); ordering the wrong letter will result in an incompatible part. Where a position carries no SKU, the component is either a structural panel, a refrigerant-side pipe, or a sealing element that may need to be quoted separately — contact us if you cannot find what you need listed. Always double-check the description as well as the position number before ordering, since generic items such as piping sections (positions 52, 53, 55, 56, 58) share similar labels but serve different circuits within the unit.

Main replaceable assemblies on the Hydro-Pro Heat Pump (Type 18)

The water circuit is the most frequently serviced area of the Type 18. Pool water enters and exits through the 50 mm glue-socket water connection sets at positions 11 and 16 (SKU 7014127), and flow is monitored by the water flow switch with 32 mm glue adapter at position 19 (SKU 7006471), which prevents the unit from running dry. Sealing between the water connections and the heat exchanger is provided by the red rubber (position 12) and blue rubber (position 17), which are straightforward consumable items to inspect when addressing any water-side leak. The heart of the heat circuit is the titanium heat exchanger at position 18 (SKU 7020787), chosen for its resistance to chlorinated and salt-water pool environments. Water temperatures are tracked by three sensors: the water-in temperature sensor T1 at position 23 (SKU 7010534), the water-out sensor T2 at position 21 (SKU 7010535), and the pipe temperature sensor T3 at position 27 (SKU 7010533); a faulty reading on the display often traces back to one of these. The ambient temperature sensor T5 at position 59 (SKU 7010537) allows the unit to adapt its operation to outdoor conditions. The refrigeration side includes the 4-way valve (position 57), electronic expansion valve (position 34), and the paired pressure switches at positions 54a and 54b (SKUs 7024791 and 7024793 respectively), which protect the compressor under abnormal low- or high-pressure conditions. Inside the electrical box (position 37), the main serviceable components are the PC board ZK 101 V1 at position 39 (SKU 7010514), transformer at position 40 (SKU 7010532), relay at position 49 (SKU 7010519), terminal block at position 46 (SKU 7010527), and the two capacitors at positions 41 and 51 (SKUs 7019180 and 7017453). The user-facing control is mounted at position 10a or 10b depending on the display variant fitted to your unit (see section below). The pressure gauge at position 14 (SKU 7010518) allows a quick refrigerant-circuit health check without specialist equipment.

Scelta tra varianti e formati di confezione

The most important variant choice on this unit is the control display at position 10. Position 10a (SKU 7010515) is the standard LED display On/Off controller (XK 001 V1 / MM011), while position 10b (SKU 7023601) is the Wi-Fi-enabled display (WiFi02i / MM101) for units equipped with wireless connectivity; these two controllers are not interchangeable, so check the label on your existing display or the wiring diagram inside the electrical box cover before ordering. Position 10c, the waterproof box, currently carries no SKU and should be enquired about directly if yours is damaged. Similarly, the pressure switches at position 54 are split by operating range: 54a covers the low-pressure circuit (0.1–0.3 MPa, SKU 7024791) and 54b covers the high-pressure circuit (3.6–4.2 MPa, SKU 7024793) — fitting a low-pressure switch in a high-pressure port, or vice versa, would render the safety protection ineffective. For all plumbing connections, confirm that your existing pipework is 50 mm diameter before ordering the connection sets at positions 11 and 16, and verify the flow switch adapter is the 32 mm glue type to match position 19. If you are in any doubt about which variant is correct for your specific unit, the factory reference 7018526 can be quoted to your installer or to our customer service team to cross-check compatibility.