Data sheet
QTL & AB-QM set - QTL 45-60 2m capillary tube with AB-QM DN 15
Description |
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QTL is self-acting thermostatic actuator primarily |
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for use for temperature control of small hot water |
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cylinders. |
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Main features: |
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Thermostat |
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• Setting range: 45-60 °C |
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• 2 meter capillary tube length |
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• Valve AB-QM, DN 15 |
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PN 16 |
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• Max media temp: 120 °C |
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• Max differential pressure: 6 bar (600 kPa) |
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• Housing material: DZR brass |
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• Connection: External thread ISO228/1 |
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Disposal |
• Small compact thermostat |
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• Fast and reliable thermostat / valve connection |
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• Automatic flow limitation to match energy |
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demand |
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• Easy valve selection and commissioning |
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• Easy to adjust the required max flow |
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Ordering |
AB-QM QTL set DN 15 45-60/2m |
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Picture |
Type |
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Code No. |
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QTL Thermostat 45-60 2m capillary tube |
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003L3535 |
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AB-QM 15 G 3/4 A, 0.09-0.45 m3/h |
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AB-QM, union connection, DN 15 |
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Service part |
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Picture |
Setting range |
Valve AB-QM |
Code No. |
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QTL thermostatic actuator 45-60°C |
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003L3534 |
* compatible only with old range of AB-QM codes 003Z1261, 003Z1211, 003Z1262, 003Z1212, 003Z1213
Accessories
Picture |
Type |
Connection |
Code No. |
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Immersion pocket Cu |
Rp ½ x M14 - ø12 x 100 mm |
003Z0391 |
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Housing for sensor stuffing box |
G ½” |
013U8102 |
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Sensor stuffing box / pocket kit |
M14x1 |
013U0292 |
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Union connection (1 pcs) |
DN 15 Rp ½ |
003Z0232 |
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Tailpiece connection – welding (1 pcs) |
DN 15 |
003Z0226 |
© Danfoss | 2021.05 |
AI228186477433en-010301 | 1 |
Data sheet |
QTL 45-60 2m capillary tube with AB-QM DN 15 |
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Application |
Thermostatic temperature controllers for single- |
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family houses and flats are used to control the |
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flow temperature in storage domestic hot water |
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and heating systems. With their fast opening |
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and closing, they protect the heating coil |
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from scaling and ensure a long lifetime for the |
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equipment installed in the system. |
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T
Sizing example
55°C 15 kW
T
Given data
DHW temp |
55°C |
Heating coil capacity |
15 kW |
Temp diff flow - return |
40°K |
Available Δp valve |
2 bar |
Required data
Valve DN |
?? |
Valve presetting setting |
?? |
Thermostat setting |
?? |
Required flow Q m3/h
Q = 0.86 x P / ∆T = 0.86 x 15 / 40 = 0.3 m3/h
Selected valve:
AB-QM, DN 15, Qnom = 0.45 m3/h
Nominal diameter |
DN |
15 |
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Flow range |
Qnom (100 %) |
l/h |
450 |
Thermostat setting |
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Valve presetting = 72% |
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P-band ≈ 7 °C |
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DHW temp = 55 °C - 7 °C = 48 °C |
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Thermostat setting: 2 |
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Thermostat setting |
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DHW temp |
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55°C |
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Valve presetting |
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72% |
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Thermostat setting |
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21) |
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1) The setting temperature according to table on page 3 is indicative.
Technical Data
General data |
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Setting range |
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45 … 60 |
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°C |
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P-band 1) |
5 |
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Max adm temperature at sensor |
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90 |
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Capillary tube langth |
m |
2.2 |
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Material |
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Housing |
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DZR Brass (CuZn36Pb2As - CW 602N) |
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Cone and diaphragm support |
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MPPE (Noryl) |
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Main spindle |
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(CW 614N) Zn39Pb3 |
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Temperature sensor |
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Copper, mat. No. 2.0090 |
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Adapter |
DN 10-20 |
CuZn39Pb3 (CW 614N), coated with Cu Zn8B |
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Nut |
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1) with relevant AB-QM, at 50 % flow setting |
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2 | AI228186477433en-010301 |
© Danfoss | 2021.05 |
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