Diamondback DPLS1 User Manual
DPLS1
DPLS1
Drain Pan Level
Sensor/Control
Installation Instructions
Provides electronic overflow protection for Drain Pans in all Mr. Slim and CITY
MULTI indoor units – MFZ, MS, MSY/Z, SEZ, SLZ, PCA/PCFY, PDFY,
PEA/PEAD/PEFY, PKA/PKFY, PLKA/PLFY, PMFY, and PVFY
Meets requirements as listed alternative to secondary drain pans in all indoor unit installations covered by the
International Mechanical Code and adaptations.
Drain Panel Level
Sensor/Control
Installation Instructions
The DPLS1 Drain Pan Level Sensor / Control provides protection against drain pan overflow in
Mitsubishi Electric Mr. Slim and CITY MULTI Indoor Units. The unit will sense a high condensate
level in the drain pan. Should this occur the control shuts down the indoor unit before an overflow
can occur. A thermistor error code will be produced should the DPLS1 activate indicating a fault
which must be resolved before the unit will re-start.
This unit provides electronic overflow protection for Drain Pans in all Mr. Slim and CITY MULTI
indoor units: MFZ, MS, MSY/Z, SEZ, SLZ, PCA/PCFY, PDFY, PEA/PEAD/PEFY, PKA/PKFY, PLA,
PLKA/PLFY, PMFY, and PVFY.
Meets requirements as listed alternative to secondary drain pans in all indoor unit installations
covered by the International Mechanical Code and adaptations.
DPLS1 – COMPONENTS
Control Box Water Sensor Splice Connector M2 Wire Harness
P Wire Harness M1 Wire Harness
Work Safe, READ THIS!
ATTENTION: FAILURE TO READ AND COMPLY WITH ALL WARNINGS, CAUTIONS AND INSTRUCTIONS PRIOR
TO STARTING INSTALLATION MAY CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE AND VOID
WARRANTY.
This device must be installed in accordance with Equipment
Manufacturer’s instructions and in accordance with all applicable
local codes, including plumbing, drainage and electrical
The DPLS1 is powered by a twenty-year life Lithium battery,
which has been factory, installed prior to shipment. This allows
installation of the sensor and control to be accomplished without
needing external electric power for operation. There is an audible
indication of low battery condition. Should the battery ever need
to be replaced at any time see the BATTERY INSTALLATION
INSTRUCTIONS in this document.
1
3400 Lawrenceville Suwanee Rd
Suwanee, GA 30024
Tele: 678-376-2900
Service: 877-391-2900
www.mehvac.com
© 2011 Mitsubishi Electric & Electronics USA, Inc.
DPLS1 Drain Panel Level Sensor/Control
ULU
L
DPLS1 Drain Pan Level Sensor/Control
Protected under one or more patients
Table 1: Description of Wire Harnesses
Type of Wire
Harness
Indoor Unit Models
Connector to Indoor Unit Control
Board
Connector to Thermistor
Connector to
Control Box
M2 Wire
Harness
MS MSZ/Y
MFZ
2 pin, female connector (with black
heat shrink) to CN111
2 pin, male connector to:
RT11 (Room Temp. Thermistor)
2 pin, male connector
P Wire
Harness
PKA PCA
PEA(D)
SEZ
2 pin, female connector to CN20
2 pin, male connector to:
TH1 (Room Temp. Thermistor)
2 pin, male connector
PKFY-P**NBMU-E
PLFY-P**NCMU-E
PMFY-P**NBMU-E
PVFY-P**E00A
PEFY-P**NMHU-E
2 pin, female connector to CN20,
CN21 or CN29
2 pin, male connector to:
TH1 (Room Temp. Thermistor) or
TH22 (Pipe Temp.
Thermistor/Liquid) or
TH23 (Pipe Temp
Thermistor/Gas)
M1 Wire
Harness
PKA
PCA
PEA(D)
SEZ
PKFY-P**NH/KMU-E
PLFY-P**NBMU-E
PCFY-P**NKMU-E
PEFY-P**NMS/AU-E
4 pin, female connector to CN44
4 pin, male connector to
TH2 (Pipe Temp.
Thermistor/Liquid) and
TH5 (Pipe Temp. Thermistor/Gas)
2 pin, male connector
MS
4 pin, female connector to CN112
4 pin, male connector to
RT12 (Coil Temp. Thermistor)
MSZ/Y
4 pin, male connector to
RT12 (Coil Temp. Thermistor –
Main) and
RT13 (Coil Temp. Thermistor –
Sub)
MFZ 4 pin, female connector to CN113
4 pin, male connector to
RT15 (Coil Temp. Thermistor)
4F Wire
Harness
All indoor units, with
CN-4F Connector on
4 pin terminate to CN-4F if available -
CN-4F is used for other function use
If CN-4F not available
2 pin, male connector
Control Board Thermistor Connection Method
Protected under one or more patents
© 2011 Mitsubishi Electric & Electronics USA, Inc.
Type of Harness Indoor Unit Models Connector to Indoor Unit Control Board Connector to Thermistor Connector to Control Box
M2 Wire
Harness
P Wire
Harness
M1 Wire
Harness
MS MSZ/Y
MFZ
PKA PCA
PEA(D) PLA
SEZ
SLZ
PKFY-P**NBMU-E
PLFY-P**NCMU-E
PMFY-P**NBMU-E
PVFY-P**E00A
PEFY-P**NMHU-E
PLA
PKA
PCA
PEA(D)
SEZ
PKFY-P**NH/
KMU-E
PLFY-P**NBMU-E
PCFY-P**NKMU-E
PEFY-P**NMS/AU-E
MS
MSZ/Y
INSTALLATION OF DPLS1
(To ensure proper performance of product, instructions must be followed.)
MFZ 4 pin, female connector to CN113
Drain Pan Level Sensor/Control:
1. Disconnect (and lock-out, if required) all power to the Mr. Slim or CITY MULTI Indoor Unit at the Disconnect Switch (if
installed) or at the main disconnect panel serving the indoor and/or outdoor unit.
2. Connect DPLS1 Splice Connector to the selected mating Wire Harness Connector – see wiring harness selection above.
Connect the Control Box’s Splice C onnector to the mating connector on the Wire Harness (Fig 1).
2 pin, female connector (with black
heat shrink) to CN111
2 pin, female connector to CN20
2 pin, female connector to CN20,
4 pin, female connector to CN44
4 pin, female connector to CN112
CN21 or CN29
2 pin, male connector to:
RT11 (Room Temp. Thermistor)
2 pin, male connector to:
TH1 (Room Temp. Thermistor)
2 pin, male connector to:
TH1 (Room Temp. Thermistor) or
TH22 (Pipe Temp.
Thermistor/Liquid) or
TH23 (Pipe Temp
Thermistor/Gas)
4 pin, male connector to
TH2 (Pipe Temp.
Thermistor/Liquid) and
TH5 (Pipe Temp. Thermistor/Gas)
4 pin, male connector to
RT12 (Coil Temp. Thermistor)
4 pin, male connector to
RT12 (Coil Temp. Thermistor –
Main) and
RT13 (Coil Temp. Thermistor –
Sub)
4 pin, male connector to
RT15 (Coil Temp. Thermistor)
2 pin, male connector
2 pin, male connector
2 pin, male connector
Fig 1
2
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