The product is designed to control -source heat pump heaters. The multi-function design supports auxiliary heating function, waterflow warning, ventilation pump control, antifreeze function, sensors failures action, auto defrost and timer defrost function, auto restart function, exhaustion protections, compressor delay and pressure protections.

Features:
Multifunction Design: with waterflow auditing, ventilation pump control, sensors failures action function.
Inquiry: Support checks the of all sensors, and the results keeps displaying for 3 seconds.
Setting: support set the and with the setting ranges of 10℃-70℃, the factory setting is 40℃.
Two Working Mode Design: there are two working modes of “AUTO" and "SAVE" for you to adjust. “AUTO" mode: keep heating according to the setting. "SAVE" mode: only heating within three set periods. You can adjust it to suit your needs.
Multiple Control Function: Equipped with control, aux electrical heaters control, and ventilation pump control function.
Winter Antifreezing & Auto Defrost & Timer Defrost Function: when the is ≤ 2℃, it will operate -freezing pumping, the pump runs 3 minutes for every 30 minutes; it will automatically stop when ≥ 3℃.  When the is -9~0℃ starts defrosting, and when the is 2-30℃ stops defrosting.
Multiple Protections & Warning Function: Support exhaust protections function, high pressure and low pressure warning and protections, compressor delay protections, and sensors failure warning.
Auto Restart & Restore: with auto restart after off, support for on/off failure memory function, and support for recovery to factory settings.

Specifications:
Name: Heating Controller
Material: printed circuit board
Setting ranges: 10℃ to 70℃
Display ranges: -40℃ to 130℃
Working : 0-50℃
Storage : -10℃ to 60℃
Ambient humidity: 20-85%RH without dew
: 220VAC ±10%, 50/60Hz
Outputs: Compressor 30A; Heaters 8A; Others 3A
Hysteresis: 2~10℃
sensors calibration: -9.9~ 9.9℃
energized from: -5~ 25℃
Defrost starting : 10- 90min
Defrost starting : -9~0℃
Defrost stop : 2~30℃
Maximum defrost : 2-15min
Exhaust protections : 50 ~ 125℃
Item size:
Display panel: 86 * 86mm / 3.39 * 3.39in
Mainboard: 105 * 90 * 35mm / 4.13 * 3.54 * 1.39in
Package size: 225 * 185 * 65mm / 8.86 * 7.28 * 2.56in
Package weight: 725g / 1.60lb

Packing List:
1 * Mainboard
1 * Display Panel
4 * Sensors