DAYLIFF DQA Panduan Pemasangan & Pengoperasian - Halaman 12

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Mode

Instruction

Night Mode

When the operational mode is set open both valves either side of the pump.

In normal operation the pump surface can be hot (up to 125 C) creating a risk

of scalding.

During commissioning beware of the risk of scalding from

escaping hot water or steam.

WARNING

Before switching the pump on, ensure the manual restart knob is engaged with

the motor shaft. Check that the shaft rotates freely and that the knob can be

seen rotating on initial start of the pump.

Venting/ Bleeding

When the system is filled with water, the pump will normally self vent air within

a short while of switching on. In cases where the pump venting is slow

(identified by pump noise) the pump bearings may be vented by using the

manual restart knob.

During this operation be aware of the risk of scalding from

escaping hot water or steam. Ensure the pump is switched

off.

WARNING

Once the system is filled with water, switch off the pump, unscrew the manual

restart knob applying sideways pressure to the screw until water emerges from

it. Screw the manual restart knob back in. Switch pump back on.

NOTE: A system may take upto 24 hours to bleed all air in the system to

atmosphere. Do not run the pump dry as this will result in bearing failure. Output

of the range of domestic circulators is by 3 speed control.

When pump is set on night mode, the power will be 38w

after working for 1 hour, 28w after 2 hours, it would exist

after 7 hours. The power of DQA would be in 19w after

working with 1 hour, 13w after 2 hours, it would exist after

7 hours. The night mode is only available when the mode

is set to AUTO, PPI, PPII, CPI or CPII.

Function