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DUCTLESS WALL-MOUNT MINI SPLIT INVERTER+ AND INVERTER++ AIR CONDITIONER / HEAT PUMP SYSTEM
QUANTUM INVERTER SERIES
(WYS-20, WYS-22, Single-Zone)
SERVICE & TROUBLESHOOTING MANUAL
(FOR USE BY QUALIFIED PERSONNEL ONLY)
Model Numbers Encompassed:
20 SEER Series (WYS-20, Quantum Inverter+):
WYS009AMFI20RL (comprised of YN009AMFI20RPD + WS009AMFI20HLD)
WYS009GMFI20RL (comprised of YN009GMFI20RPD + WS009GMFI20HLD)
WYS012AMFI20RL (comprised of YN012AMFI20RPD + WS012AMFI20HLD)
WYS012GMFI20RL (comprised of YN012GMFI20RPD + WS012GMFI20HLD)
WYS018GMFI20RL (comprised of YN018GMFI20RPD + WS018GMFI20HLD)
WYS024GMFI20RL (comprised of YN024GMFI20RPD + WS024GMFI20HLD)
WYS030GMFI20RL (comprised of YN030GMFI20RPD + WS030GMFI20HLD)
WYS036GMFI20RL (comprised of YN036GMFI20RPD + WS030GMFI26HLD)
22 SEER Series (WYS-22, Quantum Inverter++):
WYS009AMFI22RL (comprised of YN009AMFI22RPE + WS009AMFI22HLE)
WYS009GMFI22RL (comprised of YN009GMFI22RPE + WS009GMFI22HLE)
WYS012AMFI22RL (comprised of YN012AMFI22RPE + WS012AMFI22HLE)
WYS012GMFI22RL (comprised of YN012GMFI22RPE + WS012GMFI22HLE)
WYS018GMFI22RL (comprised of YN018GMFI22RPE + WS018GMFI22HLE)
WYS024GMFI22RL (comprised of YN024GMFI22RPE + WS024GMFI22HLE)
© PARKER DAVIS HVAC INTERNATIONAL, INC., ALL RIGHTS RESERVED. REVISION 07-2023
INVERTER
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Troubleshooting
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Questions and answers
what does DF displayed on indoor unit of inverter+ heat pump indicate
"DF" on the indoor unit of the Pioneer QUANTUM INVERTER Series heat pump indicates that the system is in defrost mode. This mode activates to remove frost buildup on the outdoor unit and is accompanied by the defrost light turning on.
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