Nyle e360 - Ducting and Ventilation

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Routine Maintenance
Like all modern equipment, e-Series heat pumps re-
quire routine maintenance to ensure efcient, safe,
and reliable operation. Be sure that a maintenance
schedule is created and adhered to, and that all per-
sonnel involved with maintenance are informed and
educated on their role in supporting the system.
Following are suggesting timelines and maintenance
items typically associated with e-Series heat pump
water heater installations. It is not possible to fore-
see all possible system congurations, accessories,
or site conditions, so this list should be considered
advisory only. Final maintenance schedules are the
responsibility of the service/maintenance personnel
on the project, and should be adjusted in accordance
with best practices and observed conditions.
Weekly Checks
F Visually inspect heat pump for debris around
fans, obstruction of evaporator ns, wear or
damage to unit exterior, or obstructions around
louvers or grilles on ducted systems.
F Inspect for ice or water buildup around the heat
pump.
F Check screens and/or BMS portals for alarms.
F Verify system is within normal operating param-
eters for water temperatures.
Biannual Checks (Spring and Fall)
F Check and clear drain pan and/or any drain
traps.
F Treat drain pan for algae/mold prevention.
F Inspect and clean blower housing as necessary.
F Inspect blower and fan attachment screws and
tighten as necessary.
F Inspect and clean evaporator ns as necessary.
F Inspect and clean cabinet interior as necessary.
F Inspect and clear any louvers or grilles in at-
tached ducting.
F Isolate, inspect, and clean any wye strainers on
the heat pump piping.
F Inspect all attached piping and ducting for water
leaks and/or uncontrolled condensation.
Annual Checks
F Conrm ow rate using the “Max Pump” button
on the control interface, and verify that ow is at
or above maximum design ow for the unit.
F Descale heat exchanger if necessary (low ow
unsolved by purging/pipe/pump inspection).
F Operate all relief valves and inspect for signs of
weepage or leaking.
F Ducted Systems: conrm airow through the
evaporator using the “max fan” button on the
control interface, and take static pressure read-
ings as described in the startup procedure
checklist section of this manual.
F With the unit off, disconnect the main power
leads on the compressor. With a dialectric tes-
ter (megger), test and record resistance on each
set of windings. Store this information for future
reference. Reconnect the main power leads to
the compressor.
F Defrost Component Check:
F Test resistance of the defrost elements as
per the values in Table 12 on page 35 of
the pre-startup checklist.
F Check LP sensor and evap temperature
sensor to ensure they are functional.