Fill the Reservoir – Standard Type (Non-Pressurized)
Purpose: The standard reservoir in the chiller is open to atmospheric pressure. Filling the reservoir
separately from the piping will help ensure a smooth startup.
To fill the reservoir, follow procedure below.
1. Close supply and return ball valves.
2. Remove the cap from the top of the reservoir.
3. Fill the reservoir with glycol mixture.
4. Replace cap after filling.
Fill the Reservoir – Optional Sealed Type (Pressurized)
Purpose: Some chiller designs include a stainless steel sealed reservoir. Filling the reservoir
separately from the piping will help ensure a smooth startup.
To fill the reservoir, follow procedure below.
1. Close supply and return ball valves.
2. Connect an external fill pump to the reservoir’s drain hose.
3. Open the valve on the drain hose and energize external fill pump to fill reservoir with glycol
mix, while manually forcing open the reservoir’s pressure relief valve to avoid pressurizing the
reservoir.
4. When the glycol level reaches the top of the sight glass tube, de-energize the fill pump, close
the drain valve, and allow the pressure relief valve to close.
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