Toshiba HWS-1501CSHM3-E(-UK), HWS-802XWHT6-E, HWS-802H-E, HWS-802XWHM3-E Operational Description

8 Operational Description

This chapter describes the working circuit and control of Air to Water Heat Pump about the following operations.

	Item	Page
	Basic Operation
	1)Operation control
8-1	2)Hot water supply operation	36-38
	3)Heating operation
	4)Cooling operation
	Operation Mode and Control Method
	1)Hot water supply operation
	2)Heating operation
	3)Cooling operation
	4)Simultaneous operation of “hot water supply" and "heating”
	5)Simultaneous operation of “how water supply" and "cooling”
8-2	6)Boiler-assisted heating operation	39-47
	7)HOT WATER BOOST operation
	8)Anti bacteria
	9)Night setback operation
	10) FROST PROTECTION operation
	11) AUTO operation
	12) Nighttime low-noise operation
	Hydro Unit Control
	1)Capacity control (compressor, high-temperature release, low-temperature release)
	2)Heater control
	3)Circulation pump control
8-3	4)Flow switch control	48-56
	5)Mixing valve control (2-temperature heating control)
	6)Q-H characteristics of hydro unit
	7)Automatic restart control
	8)Piping anti-freezing control
	Outdoor Unit Control
	1)PMV (Electronic control valve) control
	2)Outlet temperature release control
	3)Current release control
8-4	4)Current releases shift control	57-63
	5)Outdoor fan control
	6)Defrosting control
	7)Winding heating control
	8)Continued operation prevention under short-circuit conditions
	9)Overcurrent protection control

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