ZONE VALVE - EXTERNAL THREAD
HZ1 262 - HZ1 294
Compact ball valve design, motor actuator with 12s switch-over time for rotation between A / B zones. Available with male thread or with compression ends, motor actuator with voltage 230 V or 24 V. Designed for a multitude of applications including heat pump systems, floor heating, and HVAC setups, our ball valves serve as the cornerstone of zone management.
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ART. IDENT EAN DN Cu
[mm]
Ball valve Actuator
IDENT
Actuator
ART.
H
[mm]
H1
[mm]
L
[mm]
L1
[mm]
L2
[mm]
HZ1 262 1241262 3838963240761 20 22 1241202 1771160 HZ1 230R 170 43 84 61 80,5
HZ1 263 1241263 3838963240778 25 28 1241203 180 46,5 99 61 80,5
HZ1 264 1241264 3838963240785 32 35 1241204 196 57 114 61 80,5
HZ1 272 1241272 3838963240792 20 22 1241202 1771161 HZ1 230RS 170 43 84 61 80,5
HZ1 273 1241273 3838963240808 25 28 1241203 180 46,5 99 61 80,5
HZ1 274 1241274 3838963240822 32 35 1241204 196 57 114 61 80,5
HZ1 282 1241282 3838963240839 20 22 1241202 1771162 HZ1 24R 170 43 84 61 80,5
HZ1 283 1241283 3838963240846 25 28 1241203 180 46,5 99 61 80,5
HZ1 284 1241284 3838963240853 32 35 1241204 196 57 114 61 80,5
HZ1 292 1241292 3838963240860 20 22 1241202 1771163 HZ1 24RS 170 43 84 61 80,5
HZ1 293 1241293 3838963240877 25 28 1241203 180 46,5 99 61 80,5
HZ1 294 1241294 3838963240884 32 35 1241204 196 57 114 61 80,5
HERZ Zone Valves are used in heating and cooling systems such as heat pump systems, floor heating and HVAC
applications as a zone management element. The main advantage of the ball valve is automatic control of the valve,
which is manipulated through the motor actuator. This allows the automatic quick switch-over function (from one
circuit to another) of the valve that is managed by a system controller.

Efficient motor actuation for responsive control HERZ Zone Valve has an integrated motor actuator that switches
90° position in 12 seconds. Quick switch-over of the motor actuator means a rapid response to system needs and
energy-efficient function of the entire system. Motor actuators are available in 230 V AC and 24 V AC/DC
versions, with or without an adjustable auxiliary switch. The motor actuator is installed onto the valve with a special
fast mounting module which allows simple assembly and disassembly.

HERZ ball valve is made from high-quality brass and has identical kvs value through AB-A and AB-B. Valves are
available from dimension DN20 up to DN32.

Designed for a multitude of applications including heat pump systems, floor heating, and HVAC setups, our ball valves serve as the cornerstone of zone management: 

Usage in heat pump systems: diverting the flow from the preparation of domestic hot water and heating circuit:



Solar collectors system: diverting the flow from the west and east side of the roof:


Preparation of sanitary hot water: diverting the flow from the solar system and heat pump:



Switch over from a solid fuel boiler to an oil boiler:



Usage in solid fuel boiler systems: diverting the flow from the preparation of domestic hot water and heating circuit (radiators):


Note: All schemes above are only shown as application examples.
They are by no means installation schemes! Important components may be missing!
Nominal pressure: PN10
Max. operating temperature: 110°C (no steam)*
*when Zone valve is used in combination with HERZ motor
actuator, ambient temperature must not exceed 50°C
Min. operating temperature: 0°C (water 0,5°C)
Working stroke angle (turn): 90°
Opening torque (at PN10): ≤ 5 Nm
Leakage rate: 0%

Medium:
Heating water purity in accordance to ÖNORM H 5195 and VDI- Standard 2035. The use of ethylene, or propylene glycol in a mixing ratio of 25- 50% is allowed. EPDM gaskets will be affected by mineral oils lubricants and thus lead to failure of the EPDM seals. Please refer to the manufacturer’s documentation when using ethylene glycol products for frost and corrosion protection.

Components:


1. Motor actuator
2. Screw
3. Stem connector
4. Flange connector
5. ZONE ball valve

Function:
INSTALLATION MANUAL
DATA SHEET

HEATING:
HERZ Zone valve itself can be mounted in any position. However, when the motor actuator is attached to the HERZ Zone valve, the assembly in a hanging position is not recommended due to the possibility of water breaking into a motor drive. Valve is installed in pipe systems with the help of connectors depending on the application.


COOLING:
If the HERZ Zone valve is used in systems with chilled water and there is some risk of condensation, we strongly recommend installation with motor actuator facing up. This way the condensation will not drip onto the actuator and cause malfunctions.


Installation: