Qnergy PowerGen 5650 Series, Installation & Operation Manual

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OWER
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EATURE
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Figure 21-2 LUI, with GHT Switch
21.1.2 GHT Installation
Some systems may arrive without the Y strainer installed. There will be small tag on the return
port on the fill reservoir. Follow the instructions on the tag if your unit arrived without the Y
strainer factory installed.
Qnergy recommends adding a shutoff valve at the return port. The Y strainer can be used to
drain the system if needed for maintenance, therefore a separate drain is not necessary.
Qnergy also recommends applying insulation on the supply tubing so as to protect users from
burn risk and make the system more efficient at delivering heat.
Note: When interfacing with the supply port, always secure the Y strainer with a wrench to
prevent excess torque on internal components.
21.1.3 GHT Fill Procedure
Once the heat trace line has been installed on site and connected to the PowerGen, follow the
steps below for filling the system. Completing all steps below is critical to ensure expected lif e
of coolant pump.
1. Fill the reservoir tank until the fill indicator reaches the max level.
2. In Lynx, go to the FPC, then the “Config” tab and find the settings titled “Coolant Set Points”
3. Set “High Coolant Setpoint” to 55°C or max allowed by customer. (see Figure 21-3 on page
169)
4. Adjust the VFD according to Table 21-2 on page 169.
5. Verify the GHT switch (see Figure 21-2 above) is in the “ON” position.
6. Let the system run for 15-30 minutes.
7. Fill the reservoir tank as necessary until the level stabilizes below “max.”
8. Disable the PowerGen (via Lynx or the Start/Stop push button on LUI).
9. Close the valve (if installed by user) after the Y strainer.