Munters R Series User Manual

Manual# I27028 7-3 Rev. 2 – 11/22/2017
Inspect unit operation for overblowing or
closed dampers. Adjust and reset with
button on starter.
Low reactivation outlet
temperature warning
Reactivation air flow is
high.
Inspect reactivation blower damper position.
Unit is not operating at
design conditions.
Consult flow diagram for correct pressure
drops across wheel. See “Maintenance”
Ensure bypass damper is not fully closed
(R15 only).
Reduce moisture load or temperature to
dehumidifier in order to operate at design
conditions.
Check for leakage in air handler outside of
dehumidifier.
Reactivation energy is not
operating.
Inspect circuit breaker. Determine cause of
trip and reset.
Control components have failed. Inspect
and replace as necessary.
Control signal is not being sent from PLC.
Inspect wiring and control module and
replace as necessary.
Inspect for open heating element. Replace
as necessary.
Reactivation duct and / or
filter is blocked.
Inspect duct and filters for clogging. Repair /
replace as necessary.
Thermocouple has failed.
Inspect sensors and wiring. Replace as
necessary.
Low gas supply pressure.
Check supply pressure.
Check manual isolation valves are fully open.
Check gas pressure regulator setting.
Check wiring / signal to shutoff valves.
Gas strainer is clogged.
Gas modulation valve
malfunction
Check for correct control signal.
Check for mechanical problem with valve.
DH wheel fault
Chain no longer engaged
with wheel sprocket
Loosen tension on the chain at the drive
motor and realign chain on sprocket.
Cam is not making contact
with rotation detector
switch (LS01)
Inspect location of cam and correct as
necessary.
Airflow pressure fault
Reactivation blower is not
operating.
See “Blower and / or wheel drive motor is not
running.”
Reactivation duct and / or
filter is blocked.
Inspect duct and filters for clogging. Repair /
replace as necessary.
Burner does not light /
maintain flame
Spark plug issue
Check spark plug gap. See Section 6.19.
Check integrity of spark plug.
Check wiring to spark plug.
Flame sensor issue
Check integrity of flame sensor. See Section
6.18.
Check wiring / grounding of flame sensor.

Munters R Series Specifications

General

Brand	Munters
Model	R Series
Category	Dehumidifier
Language	English