SAS931WCH Wired Multi-Zone Hydronic Thermostat and Wiring Centre Kit

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Key Functions

Reduce Inventory Risk — One Kit for Boilers & Heat Pumps

Ensure Signal Stability — 2-Wire Non-Polarity BUS

Cut Installation Labor — Magnetic Snap-On Mounting

Lower Maintenance Costs — Modular Plug-In Design

Simplify Commissioning — WiFi Master-Slave Auto-Sync

Achieve Turnkey Efficiency — Fully Integrated Kit

Home Hydronic Thermostats SAS931WCH Wired Multi-Zone Hydronic Thermostat and Wiring Centre Kit

Product Overview

SAS931WCH Wired Multi-Zone Hydronic Thermostat and Wiring Centre Kit delivers centralized control for heating-only or reversible heating/cooling 2-pipe systems. Part of the WHL Series Hydronic Thermostats, it features a 12V 2-wire non-polarity bus that eliminates wiring errors and slashes labor costs, while the magnetic snap-on thermostats and modular plug-in wiring centre ensure turnkey efficiency. CE certified, OEM/ODM ready.

Recommended reading: View WHL Series Hydronic Thermostats |View HP hydronic thermostats

Product Features

One Kit for Boilers & Heat Pumps

Supports traditional boilers (heating only) and reversible heat pumps (heating + cooling). One SKU serves both floor heating and heating/cooling projects — reducing inventory complexity and procurement costs.
2-Wire Non-Polarity BUS

12V power-line carrier communication over a 2-wire non-polarity bus eliminates wireless interference and ensures long-term signal stability. Error-proof installation reduces call-backs.
Magnetic Snap-On Mounting

Tool-free magnetic mounting for instant panel positioning. Dramatically shortens on-site installation hours — especially valuable for large-scale projects.

Modular Plug-In Design

Segmented plug-in infrastructure enables 3-minute diagnostics and 1-second hot-swappable module replacements. No rewiring required — minimizing downtime.
WiFi Master-Slave Auto-Sync

Network credentials auto-propagate from master to all slave thermostats. One-tap WiFi setup — no room-by-room pairing required.
Fully Integrated Kit

Pre-certified package combining multi-zone thermostats and central controller. Guarantees 100% system compatibility — simplifying procurement and reducing project risk.

Product Selector

Model No.

Heat/cool

Heat only

Pipe

Speed fan

Programmable

Window card

Room card

External Sensor

Modbus RTU

WIFI

Power

Manual

SAS931WCH-XT-WIFI(TY)

√

12-18V(no polarity)

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Product Parameters

Hydronic Thermostat

Power supply and signal input: DC12 ~ 18V carrier non-polarity input
(power supply wiring control centre, maximum current 100mA)

Storage environment temperature and humidity: -10 ~ 60°C, 0 ~ 90% RH (non-condensing)

Working environment temperature and humidity: 0 ~ 50°C, 0 ~ 80% RH (non-condensing)

Temperature display range: 0 ~ 50°C

Display accuracy: 0.1°C

Size: 86x86x13mm

Protection level: IP21

WIFI antenna emission frequency(master controller): 2.4GMHz

WIFI wireless transmission distance(master controller): 60M in the open area

Wiring control centre

Power source: 100-240VAC 50 / 60Hz (maximum current 10A)

Storage environment temperature and humidity: -10 ~ 60°C, 0 ~ 90% RH (non-condensing)

Working environment temperature and humidity: 0 ~ 50 °C, 0 ~ 80% RH (non-condensing)

Size: 298 X 88 X 66mm

IP rating: IP40

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Product Dimensions

Product Installation

Product Application Scenarios

The SAS931WCH kit simplifies year-round comfort management for heating and radiant cooling systems. By integrating a 12V 2-wire non-polarity bus with a modular design, it effectively eliminates wiring errors and streamlines installation. This versatile control platform serves as the foundation for the Smart Multi-Zone Hydronic Control Solution in heating-only configurations, while also providing technical support for the Pure Radiant Heating & Cooling Control Solution designed to optimize heat pump performance.