Sub-Menu Operating Time - OEM DC BWA-SS-7 Installation And Maintenance Instructions Manual

Dc inverter ground source heat pump - all in one

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Table Of Contents

Table of Contents

ADD START : ( 10 to 65 degree adjustable , factory setting is 40 degree )

Electrical heater start water temperature, it is adjustable from 10 - 65°C, factory setting is 40°C, this

means when compressor heat the water temperature over 40°C, then allow the electrical heater to start,

this setting is for energy-saving and water tank heating (WARMWATER) only.

ADD DELAY : ( 3 to 10 Min adjustable , factory setting is 10M )

Time delay of electrical heater starting: from 3 to 30 minutes adjustable, factory setting is 10 minutes. For

example, since compressor has been running 15 minutes, when 10 minutes （factory setting）later the

return water temperature remain or decrease, the electrical heater will start automatically.

ADDDIF TEMP

Additional electrical heater restart determined by water temperature degeneration: it is adjustable from 1 to

10 degree (factory setting is 4 degree); the electrical heater will stop when the water get to setting

temperature, then restarts as soon as the water temperature decrease 4 degree (factory setting)

HDO ON (

)

Choose "

" to activate the function 'External signal controls heat pump to start or stop'; there are two

signal connections (NC), when external signal switch on them, the compressor, electrical hearer and motor

will stop running (The water pump will keep running if the operation mode is 'Room heating'); After switch

off them, the compressor, electrical heater, motor will restart and work as previous setting.

This function is for the countries which electricity has two different prices in high peak and low peak that

they can use signal to stop heat pump when in high peak electricity and start the heat pump when in low

peak electricity;

Notice: never input electricity directly to HDO terminals!