Afrigreen YASA-270HS Руководство по установке и эксплуатации - Страница 10
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3.1
Fitting notice
Drain pipe, overflow pipe of water tank should fit near by drainage channel to facilitate
drain, drain pipe should install drain valve.
Service valve should be installed before installing electropneumatic valve on the system
pipe to facilitate troubleshooting later.
User water pressure should lower than 0.6Mpa.
User should choose metal pipe( such as stainless steel, plastic-lined, stainless steel lined
steel pipe or thin wall copper pipe), in case take plastic pipe( such as PP-R pipe, ABS
pipe etc), user should consider pipe flexibility between unit and water tank.
Drain valve and disconnecting valve of system maybe need to stillst and in winter(as per
local winter temperature) to avoid frost shake.
Water system installation
3.2
System should match pipe according manual, and according to related national standard
to construction.
Pipe installation should horizontal or upright, pipe decorate reasonably, reduce bend
as much as possible, reduce resistance loss of water system.
there couldn't find leakage phenomenon in pipe and the joint.
leak proofness water pressure test should be done after finished the fitting of supplying
water pipe, cycle pipe between unit and water tank, meantime blow down to sure system
clean.
After test permition no leakage, take steps to stillst and hot water pipe.
3.3 Project example
There are varied forms for engineering system of heat pump water heater systems, Here
introduce one split types water heater systems for reference only.
Water
circulating
pump
Solenoid valves forwater replenishing
connection diagram for regular supply water system
Stainless steel waterpipehose
Drain
Water tank
Constant temperature water pump
Water meter
Check valve
Solenoid valve
Stop valve
Y-shape filter
Water pump
Squence
Name
3
8
High water level
Low water level
Legend