Chiltrix AC series Heating & Cooling series CX30, Installation And Operation Manual

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Chiltrix Inc. www.Chiltrix.com
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Commissioning and Test Run “In Heating Mode Only”
Preparation
After finishing the installation tasks, please check the items below:
1. Check the Function Selection switch settings on the water control PCB, refer to page 44.
2. Check if the power cable is securely connected and the screws are tight.
3. Is the ambient temperature displayed in the two right most digits of the wired controller?
4. Verify that all the shut off valves and manual valves are open. Insulate all water supply and
return pipes. Test only in
heating mode to verify proper water flow.
Water or Glycol Filling (See page 31) A 10% minimum glycol mixture is required to protect the unit
from freezing. Refer to the chart on page 10.
1. With a hose and filling pump connected to the CX30 water system, and all air exhaust valves
open in the water system, fill the water loop with water and glycol mixture. Keep the air
exhaust valves open until there is a continuous flow of water and glycol mixture coming out of
the air exhaust valve. Then close the air exhaust valves.
See page 32 and 33 for more details.
2. Discharge the air from both domestic hot water system and air conditioning water system. CXI
fan coils have a bleeder valve located near the inlet and outlet ports. The CX30 has a bleeder
tube attached to the Brazed plate heat exchanger.
To avoid freezing the heat pump when the air temperature drops below 32F in winter, you must use
an appropriate glycol and water mixture just in case the electricity is cut off. We recommend
biodegradable non-toxic SPP Corn Glycol, any Propylene Glycol (PG) can be used.
Running a Test
Apply power to the CX30 and select
heating mode using the wired controller. The internal pump
should start running at 100% and slowly ramp down. There is a 3 digit display on the PWM PCB that
shows the percentage of pump speed. There are also 3 switches, sw1, sw2, and sw3. Pressing sw2 once
displays a 0, twice displays return water temp, pressing it a third time displays leaving water temp.
Return and leaving water temperature should be within 6-7 degrees. If more than 6-7 degrees there is
not enough flow in the system and you will get P5 and P1 errors. Call tech support if any error codes
are displayed on the wired controller.
Chiltrix tech support hours of operation, M-F, 9 am-6 pm EST, 757-410-8640 x119
MOST IMPORTANT!
1. Always maintain electricity connection with heat pump to enable the antifreeze function.
2. Initial test should be done in heating mode . Make sure it is not in cooling mode during first
operation or running a test until you make sure the air conditioning circulation pump is working
properly and water is flowing smoothly.