LG HM123M.U32 User Manual download pdf (Page 24)

Installation

24 Air-to-Water Heat Pump

Water condensation on the floor

While cooling operation, it is very important to keep leaving water temperature higher than 16 ℃.

Otherwise, dew condensation can be occurred on the floor.

If floor is in humid environment, do not set leaving water temperature below 18 °C.

Water condensation on the radiator

While cooling operation, cold water may not flow to the radiator. If cold water enters to the

radiator, dew generation on the surface of the radiator can be occurred.

Drainage treatment

While cooling operation, condensed dew can drop down to the bottom of the unit. In this case,

prepare drainage treatment (for example, vessel to contain condensed dew) to avoid water drop.

Water Pipe Insulation

Purpose of water pipe insulation is :

To prevent heat loss to external environment.

To prevent dew generation on the surface of the pipe in cooling operation.

To prevent pipe breakage by freeze at winter season,

※ Must be insulation at exterior water pipe between product and building.

Shutoff Valve

- Shut-Off Valve is used to connect water pipe to unit.

- Tighten the flare nut with two spanner. (check the leak to the connection.)

When the water pipes are connected.

It must be tightened the nut with two wrench.

Otherwise pipes can be deformed.

Union

Water Out

Water In

WARNING

Water volume and pump capacity

The water pump is three speed-adjustable (Maximum / Medium / Minimum), so it may be required

to change default water pump speed in case of noise by water flow. In most case, however, it is

strongly recommended to set speed as Maximum.

Water pump speed

To secure enough water flow rate, do not set water pump speed as "Min."

It can lead unexpected flow rate error CH14.

NOTICE

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 78 79

No comments

LG HM123M.U32 User Manual Page 24