Heatit Z-Water front

Heatit Z-water

Regulator for hydronic heating systems

Heatit Z-Water is a DIN-rail regulator for controlling hydronic heating. Heatit Z-Water is a module that clips right onto a DIN rail to add a variety of functions to your wireless Z-Wave network.
Heatit Z-Water is equipped with 10 relay outputs and it has 4 analog inputs. The module can be power supplied from a 230V AC mains connection, and is able to deliver an output supply of 24V DC or 230V. Heatit Z-Water relay outputs are able to be freely controlled from the Z-Wave network, and can be used for several purposes, e.g. on/off control of light, control of valve actuators for an underfloor heating system, or control of other home automation systems.


This Heatit device is certified by Pepper One Gmbh according to the requirements set forward by the Z-Wave Alliance and Silicon Labs. This is a Z-Wave Plus product with the 500 series chip. If the product does not work with your gateway, then the gateway manufacturer has not made an integration for such a device. We do not give any guarantee towards integration.


  • The relay outputs may be used for controlling actuators/valves in a hydronic heating system
  • May be used to control both 24V actuators and 230V actuators
  • Can be used together with a Heatit Z-Temp2 or Heatit Z-TRM3 thermostat in each zone
  • DIN rail mounting
  • Works as a Z-Wave repeater
  • Firmware updates (OTA)
  • Supports encryption mode: S0, S2 Access Control Class, S2 Authenticated Class, S2 Unauthenticated Class


Heatit Z-Water Dimensions

technical data

Protocol Z-Wave
SDK 6.71.00
Rated voltage 100V – 240V 50/60Hz
Power consumption 0.6W standby
Fuse 3.15A Quick-Acting, UMF 250 Schurter Inc., part no.: 3405.0171.11
24V DC output Maximum 1.17A, 28W
Relay outputs Rated carry current: 5A
Max. switching voltage: 250V AC, 30V DC
Max. switching current: 5A
Max. switching power: 1,250 VA, 150W
Max. input voltage: 10V DC

Input impedance: 10 KΩ
Loop output voltage: 5V DC
Explorer frame supp. Yes
Device type Slave with routing capabilities
Generic device class Binary Switch
Specific device class Valve Open Close
Routing Yes
Z-Wave Plus Yes
Approvals CE, EN 50491-3: 2009, EN 60669-2: 2004, EMC 2014/30/EU, RoHS 2011/65/EU, LVD 2014/35/EU


2 years

Download documents

art. no. Product Z-Wave frequenCY
45 124 75 Heatit Z-Water – regulator for hydronic heating systems EU 868,4 MHz
99 124 21 Heatit Z-Water – regulator for hydronic heating systems BR 921,4 MHz
99 124 22 Heatit Z-Water – regulator for hydronic heating systems US 908,4 MHz
99 124 23 Heatit Z-Water – regulator for hydronic heating systems RU 869 MHz
99 124 24 Heatit Z-Water – regulator for hydronic heating systems US2 916 MHz
99 124 25 Heatit Z-Water – regulator for hydronic heating systems IND 865,2 MHz

The product must be installed in accordance with current version of the installation guide and national building codes. See the installation guide for further information.

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