Delta Electronics HEC1500PB User manual

Specification and Manual
Customer :
Description : Air Conditioner for Equipment (Through Wall Mounting)
Customer Part No : Rev :
Delta Model No : HEC1500PB Rev : 03
Sample Date Code:
Sample Issue Date : SEP 15 2020
DELTA ELECTRONICS, INC
252, SHANG YING ROAD, KUEI SAN TEL : [phone]
TAOYUAN CITY 333, TAIWAN FAX : [phone]
Please send one copy of this specification back after you
signed approval for production pre-arrangement
Approved by :
Date :

Part no :
Delta model no : HEC1500PB
Page 2
Table of content
Description.......................................................................................................................................... 4
Packing & Shipping ........................................................................................................................... 4
Safety Notes ....................................................................................................................................... 4
1 Product Instruction .................................................................................................................... 8
1-1 General Description .......................................................................................................... 8
1-2 Main Feature & Model Number ....................................................................................... 8
1-3 Dimension ......................................................................................................................... 10
1-4 Mounting Panel Cutout ................................................................................................... 11
1-5 Configuration & Maintenance ........................................................................................ 12
1-6 Thermal and Airflow ........................................................................................................ 13
2 Electrical Specification ........................................................................................................... 14
2-1 Indicator & Connector ..................................................................................................... 14
2-1-1 Power Supply & Alarm Connector ...................................................................... 14
2-1-2 Protection ............................................................................................................... 15
3 Environmental Condition ........................................................................................................ 17
3-1 Operating Temperature .................................................................................................. 17
3-2 Storage Temperature ...................................................................................................... 17
3-3 Operation Humidity ......................................................................................................... 17
3-4 Ingress Protection Rating ............................................................................................... 17
4 Reliability Table ........................................................................................................................ 17
5 Safety Certification .................................................................................................................. 17
6 Accessory ................................................................................................................................. 18
7 Parameters Table .................................................................................................................... 18
7-1 System Setup ................................................................................................................... 18
7-2 Alarm Logs & Fault Processing ..................................................................................... 19
8 Installation Notice .................................................................................................................... 21

Part no :
Delta model no : HEC1500PB
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9 Reclaim ..................................................................................................................................... 21
10 Versions .................................................................................................................................... 21

Part no :
Delta model no : HEC1500PB
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Description
This document is an installation and the characteristics of Delta HECX1P series Before installing the
unit, please read this manual thoroughly, and following the instructions contained in it The document is the
exclusive property of Delta Electronics, Inc it should not be distributed, reproduced, or any other format
without prior permission of Delta Specifications are subject to change without notice
Packing & Shipping
During handling or transport, air conditioner must be upward placed, “NO” inverted, flat, excessive
tilt and collision Air conditioner is a precision instrument, it should be handled or transported with care, do
not stand on the box, or place heavy objects on it Please pay attention to the following icons on the
package
If air conditioner is toppled, over slanted or dropped unfortunately, please follow below steps: a stand
for 12 hours to ensure refrigerant pressure stability, b power on and execute self-test to make sure no
alarm happened, c air conditioner keeps 1 hour operating and make sure there is no abnormal acoustic
noise
Safety Notes
Please read the safety notes carefully before installing air conditioning unit and be sure to install it
correctly After completing the installation, make sure that the unit operates properly during the start-up
operation
Meaning of WARNING and CAUTION notices:
Warning:
Failure to follow these instructions properly may result in personal injure or loss life
Caution:
Failure to observe these instructions properly may result in property damage or personal injury,
which may be serious depending on the circumstance

Part no :
Delta model no : HEC1500PB
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Warning:
1 Installation work and electrical wiring must be done by qualified person(s) in accordance with all
applicable codes, standards and national wiring regulations
2 Use this unit only in the manner intended by the manufacturer If you have questions, please contact the
manufacturer
3 Install the air conditioner in accordance with the instructions in this installation manual Improper
installation may result in water leakage, electric shocks or fire
4 Make sure that all wiring is secured, the specified wires are used, and there is no strain on the terminal
connections or wires
5 If refrigerant gas leaks during installation, ventilate the area immediately Do not directly touch refrigerant
that has leaked from refrigerant pipes or other areas, as there is a danger of frostbite
6 Before serving or cleaning unit, switch power off and disconnect power supply
7 When cutting or drilling into wall or ceiling, do not damage electrical wiring or hidden utilities
8 Be sure to use only the specified accessories and parts for installation work
9 Protective earth connection: The enclosure must be earthed at the protective earth terminal Use 2 5
mm
2
(14 AWG) wire and use spring washer to avoid loosening
10 The air conditioner shall be not accessible to the general public
11 The installation must contain a device to disconnect all poles of the air conditioner from the power supply
The contact distance in all poles must be 3 mm minimum
12 To reduce the risk of electrical shock Means for disconnection must be incorporated in the fixed wiring in
accordance with the wiring rules
13 This appliance is intended to be used by expert or trained users in shops, in light industry and on farms,
or for commercial use by lay persons” .
Caution :
1 Install the air conditioner on a wall/ door strong enough to withstand the weight of the unit
2 Do not block air inlets or exits
3 Do not install the air conditioner at any place where there is a danger or flammable gas leakage
4 Arrange the drain to ensure complete drainage

Part no :
Delta model no : HEC1500PB
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5 To avoid injury, do not touch the air inlet or aluminum fins of unit
6 Watch your steps at the time of fin cleaning or air conditioner inspection
7 Do not topple the air conditioner while moving or storage
8 The hole in the bottom of the air conditioner should be connected to a sealed container through a
drainpipe
9 The appliance is not to be used by persons (including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction
10 Children being supervised not to play with the appliance

Part no :
Delta model no : HEC1500PB
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Specification for Approval
Customer :
Description : Air conditioner for Equipment with 1500 W Rated Cooling Capacity (Through
Wall Mounting)
Customer P/N : Rev :
Delta model no : HEC1500PB Rev : 03
Sample revision : Date Code :
Sample issue date : Quantity : one sets
INTERNAL EXTERNAL

Part no :
Delta model no : HEC1500PB
Page 8
1. Product Instruction
1-1. General Description
HEC1500PB is a DC air conditioner with 48 VDC power input, it is designed for IP55 sealed outdoor
telecom cabinet to provide stable and optimum internal conditions for equipment and avoid hotspot inside
the cabinet
HEC X1 P B - XXX
(1) (2) (3) (4) (5)
No Item Digit Specification
(1) Product Message HEC Compressor Air Conditioner
(2) Cooling Capacity X1 X1=1500
(3) Operation Voltage P DC 48V for door
(4) Product Version B N/A
(5) Customer ID XXX N/A
1-2. Main Feature & Model Number
Dimensions, Weight & Mounting method
Dimension (H x W x D) (without flange) mm (inch) 700 x 500 x 200 (27 7 x 19 8 x 7 9)
Application Outdoor
Weight Kg (lbs) 28 0 (61 7)
Mounting Method Door/Side
Color (optional) RAL7035
Environmental Protection & Performance
Operating Temperature Range °C (°F) -10 to +55 (+14 to +131)
Operating Humidity External : 0~100% RH
Internal: 0~80% RH
Storage Temperature °C (°F) -40 to +70 (-40 to +158)
Storage Relative Humidity RH 5~95%
Refrigerant R134a, 285 g±10 g
Protection for Dust ,Wind and Water (External) IEC 60529 /GR487 IP55 / GR487
Noise (1m) dB-A 65
Operating Status N/A LED Indicator / Display Board
Cooling Capacity & Operational Data
Rated Cooling Capacity at L35/L35 W (Btu/hr) 1500 (5100)
Rated Cooling Current A 12 5
Rated Internal Airflow (L35/L35) m
3
/h (CFM) 420 (250)
Rated External Airflow (L35/L35) m
3
/h (CFM) 470 (275)

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Delta model no : HEC1500PB
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Power & Range
Input Voltage VDC 48
Max Operating DC Current A 14 3
Alarm N/A Dry Contact Output
Key Components
Controller Built-in Smart Controller
Fans Delta High Efficiency Blowers
Compressor Rotary, DC

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1-3. Dimension
mm(inch)
(1) Material: Case SGCC Sheet
(2) Finish: Powder coating 75~120 uM, Color RAL 7035
(3) Dimensional Tolerance: ±1 mm

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Delta model no : HEC1500PB
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1-4. Mountin Panel Cutout
Inside
Outside
Gasket

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Delta model no : HEC1500PB
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1-5. Confi uration & Maintenance
Make sure the air conditioner surface sealed with mounting flange to avoid water penetrates into
shelter through mounting interface It is suggested to use gaskets sticking on the mounting flange and seal
the gap between flange and cabinet with silicone gel during installation There should be NO any gap
surround gaskets to avoid water penetrates into enclosure
The air conditioner is composed as the following key components: they are chassis, cover, controller,
heat exchanger, blowers and compressor etc It is “not” recommended that the user replace the
compressor, evaporator, and the condenser by themselves; it may damage the system and getting injured
In order to assure the air conditioner running at optimal condition, the condenser should be cleaned
once annually at least; user can clean the condenser with water directly The external side fan blade can
also be cleaned with normal pressure water if there is dust accumulation Please do not use strong water
jet to impact the center of fan and the surface of condenser
The bottom hole of the air conditioner should be connected to a sealed container through a drainpipe,
please clear drain holes when the maintenance Please also notice that:
1 Check wires are connected correctly, and the insulation is not cracking or broken
2 Use Self-test to check the unit running correctly or not And the supplied air of internal side should be as
cooled air
3 Do not wipe the product with organic solvent, volatile substances like toluene or gasoline, it will destroy
the powder-coated surface
4 Turn off the power before maintaining
5 Please turn off power and remove dry contact connector while non-operating for a long time
NO Q'TY DESCRIPTION
1 1 Case Chassis
2 1 Case Cover
3 1 Control Board
4 1 DC Power Board
5 1 Evaporator
6 1 Internal Fan
7 1 Condenser
8 1 External Fan
9 1 Compressor

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6 If any abnormal acoustic noise from air conditioner happened, please turn off the product and contact
with customer services
7 The refrigerant is environmental friendly product of R134a Little refrigerant leakage (< 5 g/ year) is
allowed for application If refrigerant leakage seriously, please turn off the power and wait for at least 2
hours to make sure the refrigerant fully exhaust Please also contact the services to replace spare parts
8 The compressor electrical protecting cover is sealed with silicon for IP55 requirement Please do not
dismantle the sealed cover or will lose the quality assurance of the compressor
1-6. Thermal and Airflow
The internal and external air flow circulation is shown as the figure Through separated mechanism
design, internal and external air flow won’t be mixed since the waste heat can be dissipated from the
cabinet to the ambience Internal temperature sensor is placed at return air stream to provide reliable
temperature measurement and safety of operation
The waste heat generated from the internal equipment will be absorbed by the refrigerant through the
evaporator and dissipate to the ambience by the condenser of external side

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PIN1 PIN5
2 Electrical Specification
2-1. Indicator & Connector
2-1-1 Power Supply & Alarm Connector
Pin Description Cable wire size
1 DC 14 AWG
2 -48 V 14 AWG
3 N/A N/A
4 N/A N/A
5 N/A N/A
Pin Description
3 Alarm+
4 Alarm-
 System alarm default setup
Note: Customers can setup the N O or N C by themselves when any alarm happen through display
board (d1 6 Dry-contact Setup)
• Specification:
Contact rating: 60 V
dc
, 100mA
• Normal:
PIN 3 and PIN 4 dry contact output close
• Any alarms happening:
PIN 3 and PIN 4 dry contact output open
 Case Grounding:
Pin 1
Pin 5
-48V DC

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 Panel operation
• A: Display:
It will show the temperature inside the cabinet and system parametric setup
• B: LED indicator:
Power:
 When the system power on and the LED will light in green
 If any alarm happens, according to flashing times of power led to check the root
cause
Comp :
 When the compressor is running normally and the LED will light in green
 If the system gets into self-test mode and the LED will flash in green
Fan (In):
 When the inner-fan is running normally and the LED will light in green
Fan (Out):
 When the outer-fan is running normally and the LED will light in green
• C: Press Buttons:
 ↑: UP or increase
 ↓: DOWN or decrease
 SET: Parametric setup
 ON/OFF ESC: Power on/off or back
2-1-2 Protection
 Over current protection:
DC power board: 20A
 Over temperature protection:
DC power board: 95 ± 4
o
C
 Under voltage protection:
DC power board: 40 ± 1 4 VDC
 Reverse polarity:

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Delta model no : HEC1500PB
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Allow reverse voltage: 42 ~ 58 VDC
 Short Ckt:
If compressor UVW short for any both phase the compressor will not operate
 Compressor H/T protection
T
comp
≧ 105
o
C
 Eva L/T protection
T
EVA
< 0
o
C
 Power on delay for fans & compressor

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3 Environmental Condition
3-1. Operatin Temperature
-10 °C ~ +55 °C (14 °F ~ 131 °F)
3-2. Stora e Temperature
-40 °C ~ +70 °C (-40 °F ~ 158 °F)
3-3. Operation Humidity
External air loop: 0 ~ 100 % RH
Internal air loop: 0 ~ 80 % RH, non-condensing
3-4. In ress Protection Ratin
IP55 (IEC60529) on external side
GR487 on external side
4 Reliability Table
Test item Condition
High temperature IEC 60068-2-2
Low temperature IEC 60068-2-1
High temp / High humidity IEC 60068-2-3
Temperature cycle IEC 60068-2-14 test Nb
Vibration ETSI 300 019-1-4 CLASS 4 1
Ingress protection (external side) IEC 60529 IP55 / GR487
Salt fog test (external side) IEC 60068-2-11 severity 4 , 6cycles
Package bump IEC 60068-2-29
5 Safety Certification
TUV, CE, UL

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Delta model no : HEC1500PB
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PIN1(+)
PIN2(-)
6 Accessory
 Power and Alarm Cable
Pin Description Cable wire size
1 DC 14 AWG
2 -48 V 14 AWG
3 N/A N/A
4 N/A N/A
5 N/A N/A
7 Parameters Table
7-1. System Setup
Item System Parameter Default Range
d1 1 System Version 2 5 N/A
d1 2 Alarm Logs 0 0 N/A
d1 3 Inside over-temp Setup 60
o
C 40
o
C - 70
o
C
d1 4 Auto Self-Test Function Enable Enable/Disable
d1 5 Recovery Default N/A N/A
d1 6 Photo Coupler Normal Status Close Close/Open
d1 7 Password 000 000~999
d1 8 System Re-lock N/A N/A
d2 1 Target temperature 30
o
C 25
o
C - 40
o
C

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Delta model no : HEC1500PB
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7-2. Alarm Lo s & Fault Processin
Alarm Indicators
Flash Times
(Power Led)
LV1 Alarm LV2 Alarm Alarm Code
-- --
Compressor 3-min Protection
-- Compressor Power Protection
Low-Temp Startup Protection
2 Temperature Abnormal Alarm
Eva Temperature Protection 2 1
Comp-out Temperature Protection 2 2
PWB Temperature Protection 2 3
IPM Temperature Protection 2 4
Amb Temperature Protection 2 5
3 Temperature Sensor Fault
Amb Temperature Sensor 3 1
Eva Temperature Sensor 3 2
Cond Temperature Sensor 3 3
Comp-Out Temperature Sensor 3 4
PWB Temperature Sensor 3 5
IPM Temperature Sensor 3 6
4 Fan Fault
Indoor Fan 4 1
Outdoor Fan 4 2
5 Controller Fault
EEPROM 5 1
Current Sensor 5 2
DC-Bus Voltage 5 3
6 Cooling System Fault
Power Board 6 1
Startup Fail 6 2
IPM Over Current 6 3
Compressor Lack Phase 6 4

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Fault Analysis and Processing
Fault State Analysis of the Reasons Solutions
Power on, and the cabinet
temperature is too high
but the air conditioner is
not working
1 Power failure or no power
2 The target temperature is higher
than inside temperature
3 System failure
1 Check the power supply and the electric
circuit
2 Re-set the target temperature according
to the system requirement
3 Please contact the service department
The air conditioner is
running but the cabinet
temperature is still high,
no obvious cooling effect
1 The air conditioner capacity is
not match the load of the system
2 The ambient temperature is too
high
3 Low efficiency of the condenser
4 Other system failure
1 Check the heating load of the system
2 Ensure the air conditioner operates in
correct temperature range
3 Clean the condenser
4 Please contact the service department
The air conditioner stop
operating, and there is no
alarm signal
1 The inside temperature is lower
than the target temperature
2 Other system failure
1 Re-set the target temperature according
to the system requirement
2 Please contact the service department