evoheat H15A, Инструкция по установке и эксплуатации, Страница: 29 / 32

Appendix 3
：
The installation explanation of the leakage pressure valve.
1 The action pressure of leakage pressure valve 'is more than 3bar(valve is open)
，
but the pressure can not be adjusted.
2 The valve will open automatically to make sure that the water loop of air-con system
is safe when the water pressure in the backwater side is higher than the set pressure.
Appendix
Appendix 4
：
The way of assistant heat source connection
Unit provides the connection of assistant heat source which can not be only for gas-fired
boiler,but also for electronic boiler or warm-net pipe for city accordingly.
The way to the connection is as follows:
2
）
water chiller and heat pump+assistant electronic boiler
electronic boiler
inlet
cable
water chiller and heat pump
gas-fired boiler
inlet
outlet
1
）
water chiller and heat pump+assistant gas-fired boiler
Three-way valve
control wire
outlet
water chiller and heat pump
inlet
cable
outlet
inlet
outlet
outlet
inlet
26
Appendix
27
Appendix 5
、
Ways of connection to remote controller
The following ways of connection to control system are optional based on user demand:
A. Simultaneously connect remote controller and networking interface:
PC8002
+12
NET
GND
Remote
controller
WiFi module
Note:
1
、
In the mode of unit operation, it is necessary to complete value setting by remote controller.
2
、
It is advised to control equipment by mobile terminal after connection to WiFi module.
B. Connect with external water pump:
Note:
Connect frequency water pump
(PWM control) to reserved interface
as required and controller will be able
to automatically control water pump.
GND
Y3
Frequency
water pump
Main controller
L
N
C. Connect to room temperature controller:
Note:
1
、
The way is applicable to special requirements of users;
2
、
Connect 485 signal wire to reserved terminal after determining the use of room
temperature controller.
R S4 85 +
R S4 85 -
PC8002
Room
temperature
controller