Toshiba HWS-802H-E, HWS-802XWHT6-E, HWS-802XWHM3-E Outdoor unit 16 Outdoor Unit Setting

Outdoor unit

16 Outdoor Unit Setting

16-1. Refrigerant recovery control

Although HFC refrigerant is "Ozone depletion potential = 0", emission control is applied to it as a greenhouse effect gas.

This model has a switch for the outdoor unit to perform an environment-friendly refrigerant recovery operation (pump down) when the model is replaced or discarded.

[How to operate]

1 Remove the water in the hydro unit.

(With the water remained in the hydro unit, performing refrigerant recovery may freeze the water and burst the unit.)

2 Set all the SW804 dip switches to OFF (initial status), and press the push-button switch SW801 for approx. 1 second.

A cooling operation starts. (During the operation, D805 (green LED) blinks.

Note that this operation lasts for 10 minutes.

3 After 3 minutes has passed, close the liquid-side valve.

4 After the refrigerant recovery is completed, close the gas-side valve.

	4
	3
	2
ON	1

SW804 All OFF (Initial status)

SW801 Press for approx. 1 sec

SW805 (Green LED) blinks.

D800
D801
D802
D803
D804		4
D805		3
		2
	ON
		1
		4
		3
		2
	ON
		1

5 Press again the push-button switch SW801 for

approx. 1 second. The outdoor unit stops operation (cooling).

16-2. Outdoor unit settings (Existing piping, Power save, etc.)

The following settings are available with dip switch setting and jumper wire setting.

Function

Existing piping setting

Power save setting

Snow prevention fan control

Defrosting time change

Maximum frequency change

Where to set

SW802

	4	--- OFF
	3	--- Existing piping setting
	2	--- Power save setting
ON	1	--- Snow prevention fan control

* All OFF position at factory setting

J805, J806

J807

Control details

When using a Ø19.1 pipe for the existing piping, set the switch to ON. This case may decrease heating capacity depending on the outside air temperature when heating or on a room temperature.

When using the power save function, set the switch to ON. This setting controls the compressor frequency lowering (about 10%) according to the heat exchange temperature of the hydro unit during a heating or hot water supply operation.

This control enables the function that prevents snow from entering the draft air duct through the fan guard or a heat exchanger gap and causing moter lock. If the outside air temperature is 0°C below, this control operates the outdoor fan in W5 even if the compressor is not in operation.

If the defrosting interval is shorter than the standard, the jumper wire is cut. For the control details or how to cut the jumper wire, see defrosting control.

If the maximum value of compressor frequency need to be lowered, cut the jumper wire shown on the left.

This control lowers the maximum frequency when hot water supply, heating, or cooling is in operation. (HWS-802H-E only)

In this case, the maximum capacity decreases. Maximum frequency of compressor

Model	HWS-802H-E		HWS-1102H-E		HWS-1402H-E
	Cooling	Heating	Cooling	Heating	Cooling	Heating
Standard	70.2	70.2	60.0	60.0	70.2	70.2
J807 cut	53.4	64.2	60.0	60.0	70.2	70.2

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