Pre-filled SYR cartridge for treating heating system fill water to VDI 2035
The pre-filled SYR cartridge screws onto the SYR connection centre and treats the water used to fill the heating system: HWE softens it, HVE demineralises it and HVE Plus demineralises it and stabilises the pH. Price on request: message us on WhatsApp and we will send you a quote.
Summary
| Type | Fill water treatment cartridge, pre-filled with granulate |
|---|---|
| Brand and model | SYR HWE, HVE and HVE Plus, 2.5, 4, 7 and 14 litres |
| Use | Filling and topping up sealed heating systems to VDI 2035 |
| Compatible with | SYR AC 3200 and AC All-in-One 3228 AnschlussCenter and earlier SYR models |
| Refill | With SYR replacement granulate of the same type |
| Q-Tech installation | Fitting and first fill by an on-site Expert Technician |
What is the pre-filled SYR cartridge?
The pre-filled SYR cartridge is the granulate vessel of the SYR cartridge system that treats heating system fill water. Choose the type according to the water the heat source manufacturer requires and the size according to the volume to be treated.
Types and volume calculation
| Type | Treatment | Litres treated |
|---|---|---|
| HWE | Softening | Capacity divided by the hardness difference (mains water minus target water) |
| HVE | Demineralisation | Capacity divided by the total mains water hardness |
| HVE Plus | Demineralisation with pH stabilisation | Capacity divided by the total mains water hardness |
Example with 20 °dH mains water: a 7-litre HVE treats about 437 litres (8,750 divided by 20), based on the capacity published by SYR.
Models and data by variant
| Type | Size | Reference | Capacity (litres × °dH) |
|---|---|---|---|
| HWE | 2.5 l | 3200.00.021 | 9,100 |
| HWE | 4 l | 3200.00.001 | 14,560 |
| HWE | 7 l | 3200.00.003 | 25,480 |
| HWE | 14 l | 3200.00.004 | 50,960 |
| HVE | 2.5 l | 3200.00.022 | 3,125 |
| HVE | 4 l | 3200.00.011 | 5,000 |
| HVE | 7 l | 3200.00.013 | 8,750 |
| HVE | 14 l | 3200.00.014 | 17,500 |
| HVE Plus | 2.5 l | 3200.00.023 | 2,185 |
| HVE Plus | 4 l | 3200.00.015 | 3,500 |
| HVE Plus | 7 l | 3200.00.005 | 6,500 |
| HVE Plus | 14 l | 3200.00.006 | 13,000 |
Compatibility and limits
- For the SYR AC connection centres 3200 and All-in-One 3228, in their Standard and Connect versions.
- The same references fit earlier SYR models: the classic AnschlussCenter 3200 and 3228 and the All-in-One+ Connect, according to their data sheets.
- According to SYR, the 14-litre cartridge includes a support stand.
- When exhausted, it is refilled with SYR replacement granulate of the same type.
Frequently asked questions
Which type do I need?
The one your boiler or heat pump manufacturer requires: HWE for softened water, HVE for demineralised water and HVE Plus if the pH also needs stabilising.
How many litres does it treat?
It depends on the water hardness. Divide the capacity in the table by the hardness (HVE and HVE Plus) or by the hardness difference you want to remove (HWE).
Can it be refilled?
Yes. SYR sells replacement granulate for each type; the 14-litre cartridge is refilled with two 7-litre bags.
What is the price?
On request. Message us on WhatsApp and we will send you a quote.
What is the delivery time?
Made to order: we will confirm the lead time before preparing your order.
Q-Tech VDI 2035 calculator
Check whether the water in your heating system meets the VDI 2035 guideline (Part 1, 2021). Enter the output, the system volume in litres and the hardness and conductivity of your mains water: the calculator gives you the verdict and the three key figures for filling or topping up the circuit. If you need it, we will send you the full report.
Guidance only: check the manufacturer's requirements.
Documentation
- AC range and cartridge system on the SYR website (in German)
- Cartridge and granulate references on the SYR website (in German)
- Q-Tech guide: water quality under VDI 2035
Availability and lead times: made to order. We will confirm the lead time before preparing your order.
