SAS816WHL Non-Programmable Rotary Dial Hydronic Thermostat

Key Functions

Simplify Daily Use – Rotary Dial Operation

Meet Basic Compliance – Entry-Level Safety & Functional Standards

Speed Up Commissioning – DIP Switch Mode Changeover

Expand to Multi-Zone – 8-Zone Control with Wiring Centre

Protect Floor Surfaces – Intelligent Dual-Sensor Protection

Ensure Winter Reliability – Anti-Freeze & Boiler Interlock

Product Overview

SAS816WHL Non-Programmable Rotary Dial Hydronic Thermostat delivers simple, reliable temperature control for water underfloor heating. Part of the WHL Series Hydronic Thermostats, its intuitive rotary dial eliminates any learning curve, while a built-in DIP switch allows quick changeover between heating and cooling modes. Supports up to 8 independent zones with a wiring centre, and offers room, floor, or dual-sensor modes to protect flooring materials. Anti-freeze protection automatically activates below 5°C to prevent pipe bursts.

Product Features

Product Selector

Model No. Heat only Cool only Wired Wireless Programmable Relay Link with boiler External Sensor RF WIFI Power Manual
SAS816WHL-0








220V download

Product Parameters

SAS816WHL Non-Programmable Rotary Dial Hydronic Thermostat

Power source: 100~240VAC 50/60HZ

Resistant Load current: 250VAC 5A

Inductive Load current: 250VAC 3A

Room temperature setting range: 5℃~30℃ (41℉~90℉)

Floor temperature setting range: 5℃~ 40℃(41℉~99℉)

Accuracy: ±1℃ or ±1℉

Dimensions: 86mm×86mm×32mm

Color: White


Product Dimensions

SAS816WHL product dimensions outline drawing

Product Installation

SAS816WHL wall mounting installation steps diagram

Product Application Scenarios

The SAS816WHL thermostat is ideal for senior housing, vacation rentals, budget-driven housing projects, and any application where simplicity, low cost, and reliable non-programmable control are required. The rotary dial and DIP switch design also suits contractors who need fast, error-free installations in multi-unit developments.
hydronic thermostat in luxury villa living room
luxury villa
hydronic thermostat in modern apartment living room
Apartments
hydronic thermostat in hotel guest room
Hotel

FAQ

Is SAS816WHL programmable?

No, it is a nonprogrammable thermostat. Users simply turn the dial to set the desired temperature – no schedules, no apps, no confusion.

How long do the batteries last?

Battery life varies depending on usage, but typically lasts 1218 months. A low battery icon appears on the display well before failure, allowing timely replacement.

Does SAS816WHL support cooling mode?

Yes, it features a DIP switch for fast heating/cooling mode changeover, making it suitable for yearround system integration with reversible heat pumps.

What is the heating/cooling mode switch?

A physical DIP switch inside the thermostat allows installers to select either heating mode (for underfloor heating) or cooling mode (for fan coil or chilled floor systems) – no menu navigation required.

Is this thermostat suitable for rental properties?

Yes. Its simple dial operation eliminates tenant confusion and support calls, while the low battery alarm prevents unexpected shutdowns.
Get in Touch

Contact our friendly customer service team for any questions, concerns, or suggestions. We'd love to hear from you.


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