Complete the Safety Checks and Test RunUpdated a day ago

Introduction

This article explains how to complete the safety checks and test run for our systems. 

This article is for the following systems: 

• Diamante Essenza (WYT-17)
• Diamante Pro (WYT-20)
• Quantum Ultra High-Wall (WYT-24)
• Quantum Hyperformance (WYT-25)
• Quantum Fresh (WYT-FA)
• Quantum Ultra Ceiling Cassette (CYT-24)
• Quantum Ultra Ducted Ceiling Concealed (RYT-24)
• Quantum Ultra Floor-Ceiling Flex (UYT-24)

Safety Checks

Safety Checks Before Test Run

• Check the grounding work. Measure the grounding resistance by visual detection or with a grounding resistance tester. Grounding resistance must be less than 4Ω. This may not be required in some locations. 
• Confirm that all electrical wiring is safe, operating correctly, and installed in accordance with local and national regulations and installation manual. 
• Confirm there is no gas leakage by checking all the flare nut connections. Use one of these methods: 
  • Soap and Water Method: Use a soft brush to apply soapy water or liquid detergent to all pipe connection points on the indoor and outdoor units. The presence of bubbles indicates a leak. 
  • Leak Detector Method: If using a leak detector, refer to the device's operation manual for proper usage instructions.
• Confirm that both the gas and liquid valves (high/low) are 100% fully opened. 

Safety Checks During Test Run

• Check for electrical leakage. 
• Use an electroprobe and multimeter to perform a comprehensive electrical leakage test. 
• If electrical leakage is detected, turn off the unit immediately and call a licensed electrician to find and resolve the cause of the leakage. This may not be required in some locations. 

Test Run

Perform the test run for 30 minutes. Follow these steps to complete the test run: 

1. Connect the power to the unit. 
2. Press the On/Off button on the remote controller to turn it on. 
3. Press the Mode button to scroll through the following functions, one at a time: 
   • Cooling - Select lowest possible temperature.
   • Heating - Select highest possible temperature. 
     • If outside temperatures are too high to permit turning on Heating mode, complete the following: 
       • A. Turn the unit on and put it in Heating mode using the emergency button. 
       • B. Run the Heating mode test as normal and turn the unit back off using the button when complete. 
4. Let each function run for 5 minutes and perform the following checks: 
   • No electrical leaks or abnormal noises. 
   • The unit is properly grounded. 
   • All electrical terminals are properly covered. 
   • Indoor and outdoor units are securely installed. 
   • All pipe connection points do not leak. 
   • Water drains from the drain hose properly. 
   • All piping is properly insulated. 
   • The indoor unit responds to the remote controller. 
   • The indoor unit louvers work properly. 
   • The system works in both Heating + Cooling mode. 
5. Double check all pipe connections. During the operation, the pressure of the refrigerant circuit will increase. This may reveal leaks that were not present during the initial leak check. Take time during the test run to double-check that all copper pipe connection points are leak-free. Cooling mode pressure should be 120-155 PSI. Heating mode pressure should be 320-450 PSI. 

After the Test Run

After the 10 checks are completed and marked as passed, perform the following operation: 

1. Use the remote controller to return the system to a normal desired operating temperature. 
2. Use the insulation tape to wrap the indoor unit's refrigerant pipe connections that were left uncovered during the installation process.