OptiClimate Connection Set for PRO3 and PRO4 Units
OptiClimate Connection Set for PRO3 and PRO4 Units
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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The matched plumbing set for a PRO3 or PRO4 install
The OptiClimate connection set is the manufacturer's plumbing kit for connecting a PRO3 or PRO4 water-cooled unit to its water circuit. Using the matched set removes the guesswork over thread sizes and hose ratings on a circuit that runs continuously and sits above a room full of electrics.
Key Benefits
- Correct fittings first time - matched to the unit's inlet and outlet rather than adapted on site
- Rated for continuous duty - a climate circuit runs for months without a break
- Sized for the larger units - specified for the 10000 and 15000 models
- Genuine OptiClimate part - keeps the install within the manufacturer's specification
A water circuit assembled from whatever was in the van
Mixed fittings and unrated hose are how a water-cooled install ends up leaking onto a distribution board. The connection set is not glamorous and it is the cheapest insurance on the whole system.
How to Use
- Fitting: connect to the unit's flow and return, following the flow arrows
- Before commissioning: pressure test the circuit and leave it standing before powering the unit
- Pair with: the pressure reducing valve and the solenoid valve on a mains-fed circuit
- Check: re-check every joint after the first 24 hours of running
Technical Specifications
- Type: Water connection and plumbing set
- Fits: OptiClimate PRO3 and PRO4, 10000 and 15000 models
- Application: Water-cooled climate installations
- Supplied as: Matched set

FREE Express Delivery on orders over £60. We aim to post same day for next-working-day arrival — order by 3pm Mon–Fri. Delivery is 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.