Large multi-unit buildings (>40 apartments), hotels, sports centres, industrial buildings with high DHW peak demand. Heating side — high-power boiler or DH consumer loops. Delivery across the EU.
| Parameter | Value |
|---|---|
| Code | 004H7309 |
| Plate count | 70 |
| Hydraulic layout | 1-pass |
| Connections | G 1 1/4" male thread |
| Max pressure | 25 bar |
| Temperature range | −10 → 195 °C |
| Plates | AISI 316 |
| Braze | Copper |
XB 37H-1 70 is near the series maximum. For loads > 260 kW move up to the XB 52M series with DN 32 connections.
Official Danfoss catalog: store.danfoss.com/004H7309
When power demand > 250-300 kW, or when the pipework is DN 32 (naturally matching XB 52M connections).
Yes. 2-stage schematics use two exchangers in series — the first preheats, the second finishes to 55 °C.