Immersion temperature sensors 1791P0 QAE22. Immersion s

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Immersion temperature sensors 1791P0 QAE22. Immersion s

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Immersion temperature sensors
1791P0
QAE22.
Immersion sensor acquiring water temperature pipes tanks. Acquisition water temperature controlling limiting flow temperature limiting return temperature controlling d.h.w. temperature Type summary Type reference QAE22 QAE22A QAE22.2 QAE22.5A With clamp protection pocket With protection pocket made brass (Ms63) threaded sleeve With compression ferrule union with threaded sleeve With protection pocket made brass (Ms63) threaded sleeve
Variable immersions length
Outfit
Immersion length max.
Nominal pressure PN10 PN10 PN16 PN10
Protection pocket mandatory
Accessories (optional) Designation Protection pocket Protection pocket Protection pocket Protection pocket Material Ms63 Ms63 St18/8/2.5 St18/8/2.5 Nominal pressure PN10 PN10 PN25 PN25 Kind sealing Threaded with sealing means Threaded with sealing means With flange flat seal With flange flat seal Immersion length Part 1600 1601 1620 1621
CE1N1791E 18.04.2002
Siemens Building Technologies HVAC Products
Ordering When ordering, please give name type reference part no., e.g.: immersion temperature sensor QAE22A protection pocket 1621 Function sensor acquires medium temperature solar panel with nickel element. resistance value element changes function temperature. delivered further handling suitable controller. Sensing element Characteristic
1791D0
Accuracy
1791D02
1800
1600
1400
1200
1000
-0.5
-1.0
[°C]
-1.5
[°C]
Legend
Resistance value Temperature degrees Celsius Temperature differential Kelvin
Mechanical design immersion temperature sensor consists following components: Two-sectional plastic housing comprised base with connection terminals removable cover (snap-on design) Immersion with LG-Ni 1000 sensing element Protection pocket made brass with threaded sleeve (only with QAE22A QAE22.5A) Clamp fitting protection pocket (not with QAE22.2) Compression ferrule union with threaded sleeve (only with QAE22.2) connection terminals accessed after removing housing cover. Cable entry made grommet tension relief). required, grommet replaced cable entry gland. Technical data
General sensor data Temperature range Sensing element Time constant With protection pocket Without protection pocket Immersion Base Housing cover Protection pocket Compression ferrule union Base Housing cover Degree protection housing Safety class 30.+ LG-Ni 1000 approx. approx. stainless steel pipe steel 1.4435, 1.4571 Luran brass (Ms63) stainless steel 1.4404, 1.4435, 1.4571 silver-grey, 7001 light-grey, 7035
Materials
Colors Degree protection safety class
Siemens Building Technologies HVAC Products Immersion temperature sensors QAE22. CE1N1791E 18.04.2002
Electrical connections
Environmental conditions
Weight incl. packaging
Screw terminals Cable entry cable entry gland Permitted cable lengths Operation Climatic condition Temperature (housing) Humidity (housing) Transport Climatic condition Temperature Humidity Mechanical environmental conditions QAE22 QAE22.2 QAE22A QAE22.5A
max. grommet cable 5.5.7.2 fitted refer Data Sheet controller 721-3-3 class 5.95 r.h. 721-3-2 class 25.+ r.h. class 0.155 0.178 0.198 0.215
Engineering notes nominal pressure exceeds PN10 temperature exceeds protection pocket with flat seal required. permissible cable lengths depend type controller used. Mounting installation notes Depending application, sensor located follows: flow temperature control: heating flow: Directly after pump pump located flow after mixing valve pump located return limiting return temperature: return location where temperature correctly acquired sensor should installed elbow such that immersion protection pocket faces direction flow. water must well mixed where temperature acquired. With types sensors, immersion length must minimum sensor covered lagging. Before mounting sensor, threaded fitting T-piece must welded pipe. sensor should mounted such that cable does enter from top. Permitted mounting positions
permitted
1791Z20
Mounting elbow
dia. with QAE22.2 dia. with QAE22A, QAE22.5A
1791Z2
Siemens Building Technologies HVAC Products Immersion temperature sensors QAE22. CE1N1791E 18.04.2002
Note
sensors with nonsealing threaded sleeves sealing means must used (e.g. hemp, Teflon band similar Tighten compression ferrule union QAE22.2 sensor's immersion When tightening first time: Turn about turns until strong resistance felt. Slacken again retighten turn preassembled compression ferrule union repeated fitting: Screw until finger-tight. Then, tighten with spanner turn final Mounting Instructions printed packaging.
Internal diagram
1791G0
internal diagram identical types immersion sensors covered this Data Sheet. connecting wires interchangeable. Dimensions
5,5.7,2
QAE22A, QAE22.5A
53,4
(QAE22.5A) (QAE22A)
5,5.7,2
QAE22
5,5.7,2
QAE22.2
1791M03
1791M0
26,9
Siemens Building Technologies HVAC Products
2000 Siemens Building Technologies Ltd. Immersion temperature sensors QAE22. CE1N1791E 18.04.2002
1791M05
max.

Immersion temperature sensors 1791P0 QAE22. Immersion s

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