Nyle e360 - Page 31

HeatWater.com | WaterService@nyle.com | (800) 777-6953 | Rev. IM-E360-060523 HeatWater.com | WaterService@nyle.com | (800) 777-6953 | Rev. IM-E360-060523
Installation: Water Piping
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An example of typical water side piping is shown for reference. If piping extends
below storage tank drain points, install additional drain points at the lowest points
on the piping.
D6-Water Side Piping Concept
Piping Notes:
1. Exterior water piping and condensate piping require insulation in all cases. heat tracing is required on all pipes that could be
exposed to freezing conditions. UV jacketing is recommended for pipes exposed to sunlight. Insulate as per applicable energy
codes, ambient conditions, and heat trace requirements.
2. Pitch exterior run pipes down toward heat pump connections. This Allows manual draining of exterior lines to the drain point
within the heat pump. Alternatively, sloping all pipes to the interior is permissible if slope is continuous to an interior drain
point.
3. All piping between heat pump and storage should be sized for appropriate pressure drops and velocities. Refer to
performance specifications for available pressure and flow rate requirements. Insulate interior piping as per applicable energy
codes.
4. Condensate piping must be heat traced and insulated in all cases where piping could be exposed to freezing conditions. Pitch
to freeze protected drain point, or to condensate pump.
5. Pump circulation between heat pump and storage tanks is required as a part of freeze protection in some conditions. No
automatic devices that interrupt flow may be installed between the heat pump and storage tank. Pipe a heat trap into the hot
water line to stop unintended migration from tanks to the heat pump.
6. Pipe pressure relief valve outlets to the floor, or as required by applicable codes and regulations.
7. Ensure storage and swing tanks are rated for potable usage, have adequate volume for the design, have required tappings at
required locations, and are approved to handle system flow rates without fitting erosion.
8. Swing tank must have backup heat installed sucient to cover at least the recirc system heat losses. Backup heat can be
installed in the tank itself, or piped to it from an external heater.
9. Air venting is recommended on high point of the hot water supply piping from the water heater. Use only air vents suitable for
open systems. Ensure the air vent is installed in an interior, protected space.
10. Expansion devices must be located on the swing tank side of the primary storage to swing tank/distribution system check
valves.