Chiltrix AC series Heating & Cooling series CX30, Инструкция по установке и эксплуатации

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Hydronic Piping and Design Guide
Installation Methods Heating and Cooling (Heating Shown)
Note: Primary Secondary Piping is NOT supported on this chiller.
A buffer tank must be used for floor heating.
Installation Notes:
1. Minimum pipe size should be no less than 1”, CPVC or Oxygen Barrier PEX, reverse return piping is
preferable to eliminate balancing valves or pressure regulators. The installer should calculate the
pipe and fitting resistance to determine the head pressure. See the examples on the following pages,
maximum water flow for the CX30 is 6 gpm, design flow is 4.8 gpm. If necessary, a second PWM
pump may be added to the loop and controlled by the CX30. The second water pump connections
can be found in the wiring diagram starting on page 19.
2. The loop example above is designed with wild coils. Water flows through the coil at all times, if there
is a call for heating or cooling the FCU controls will turn the fan on. Optionally, a 2 way valve may be
installed at the input tee to prevent any flow through the coil and the FCU will control it.
3. An air discharge valve should be installed at the top of the circulation system if possible for easy air
discharge. As an alternative an automatic/manual air vent can be used inline before the pumps.
4. Flow meters with restrictor valves, Watts Flow Guard for example, may be used when reverse return
piping is not an option.
5. Always install a water filter or wye strainer on the supply pipe to the chiller to prevent blockage of
the heat exchanger.