This document is an instruction manual for Siemens insert temperature sensors. The sensor is used to measure water temperature and can be used for controlling supply water temperature, limiting return water temperature, and controlling domestic hot water temperature. The document introduces different models of the sensor and their accessories, and provides detailed explanations of the sensor's working principle and technical data.
This guide describes the Siemens QAE22 insert type temperature sensor, its variants and optional protective sleeves. It explains the sensor’s purpose for measuring water temperature in supply, return and domestic hot‑water loops.
The document includes technical data such as temperature range, pressure ratings, material specifications, and wiring diagrams, as well as detailed installation and mounting instructions for each sensor model. This manual is written in Chinese.
| Temperature range | -30 to +130 °C |
|---|---|
| Insert rod material | Stainless steel DIN 1‑7‑440 |
The insertion length must be at least 50 mm.
Rotate the nut 1½ turn until strong resistance, loosen it, then tighten an additional ¼ turn.
If the rated pressure exceeds PN10 or the temperature exceeds 100 °C, a flat‑seal protective sleeve must be installed.