Hill Phoenix 05Dma Users Manual O5dma

05DMA to the manual a1d82773-0fce-4943-8435-3129acc3fcc5

2015-02-09

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DAIRY/DELI
/PRODUCE
C A S E S
MODEL: O5DMA

INSTALLATION & OPERATION

HANDBOOK
P056442G
Rev. 10 12/04

DANGER
Electrical Shock Hazard
Always disconnect power to case
when servicing or cleaning.

WARNING

HIGH
PRESSURE disconnect power to the fans
before cleaning case.

WARNING
Some surfaces may be hot when
case is in operation.
HIGH
PRESSURE

HIGH
PRESSURE

WARNING
Always turn off power to lights
before servicing.

HIGH
PRESSURE

CAUTION
Do not walk or put heavy
objects on top of case.

HIGH
PRESSURE

Welcome to the ORIGIN2 display case family. We’re very pleased you
joined us.
This installation and operation handbook has been especially
prepared for everyone involved with ORIGIN2 display cases – owners,
managers, installers and maintenance personnel.
You’ll find this book different than traditional manuals. The most
dramatic difference is the use of many more illustrated instructions to
make it easier to read and to help you get the most from this innovative
new design. When you follow the instructions you should expect
remarkable performance, attractive fits and finish, and long case life.
We are interested in your suggestions for improvement both in case
design and in this handbook. Please call/write to:

Hill PHOENIX
Marketing Services Department
1925 Ruffin Mill Rd.
Colonial Heights, VA 23834
Tel: 804-526-4455
Fax: 804-526-7450
or visit our web site at
www.hillphoenix.com
We wish you the very best in outstanding food merchandising and a
long trouble-free operation.

TABLE OF CONTENTS
GENERAL INFORMATION – PAGES 2-3
General information, first step recommendations and case dimensional drawings.
THE USE OF CASTERS – PAGE 4
Cases roll on casters–general use and caster removal.
INSTALLATION - PAGE 5
Instructions on how to trim out cases with illustrations.
REFRIGERATION PIPING - PAGE 6
Diagram showing the refrigeration components of the self contained cases.
COMPONENT DEFINITIONS - PAGE 7
Operational descriptions of the refrigeration components.
PLUMBING – PAGE 8
Information on drain connections.
ELECTRICAL HOOKUP, CONTROL SETTINGS, AND WIRING DIAGRAMS – PAGES 9-16
Complete information on electrical connections.
CASE OPERATION – PAGE 17
Recommended settings for all case controls.
DEFROST AND TEMPERATURE CONTROL – PAGE 18
Defrost data. Sensor bulb locations.
AIR FLOW AND PRODUCT LOADING – PAGE 19
Air flow and load limits.
USE AND MAINTENANCE – PAGES 20-21
Cleaning and fan information.
PARTS ORDERING – PAGES 22-24
Replacement parts identification.
NOTES - PAGES 25-26
PRODUCT WARRANTY - Inside Back Cover

GENERAL INFORMATION
DESCRIPTION OF CASES: The refrigerated display cases described in this handbook
are part of the Hill PHOENIX, Origin2 design series. Specifically covered in this manual is
model O5DMA multi-deck dairy/deli/produce self-contained.
STORE CONDITIONS: Hill PHOENIX cases are designed to operate in an air conditioned
store with a system that can maintain 75OF (24OC) store temperature and 55 percent (maximum) relative humidity (CRMA conditions). Case operation will be adversely affected by
exposure to excessively high ambient temperatures and/or humidity.
REFRIGERATION SYSTEM OPERATION: Air cooled condensing units require ventilation for
efficient performance of condensers. Machine room temperatures must be a minimum of
65OF in winter and a maximum of 95OF in summer. Minimum condensing temperatures
should be no less than 70OF.
RECEIVING CASES: Examine fixtures carefully for shipping damage and shortages. For
information on shortages contact the Service Parts Department at 1-800-283-1109.
APPARENT DAMAGE: A claim for obvious damage must be noted on the freight bill or
express receipt and signed by the carriers agent, otherwise the carrier may refuse the claim.
CONCEALED DAMAGE: If damage is not apparent until after the equipment is unpacked,
retain all packing materials and submit a written request to the carrier for inspection within
15 days of receipt of equipment.
LOST ITEMS: This equipment has been carefully inspected to insure the highest level of
quality. Any claim for lost items must be made to Hill PHOENIX within 48 hours of receipt
of equipment.
TECHNICAL SUPPORT: If any technical questions arise regarding a refrigerated display
case contact our Customer Service Department in Richmond at 1-804-526-4455. For any
questions regarding our refrigeration systems or electrical distribution centers contact our
Customer Service Department in Conyers at 1-770-285-3200.
CONTACTING FACTORY: Should you need to contact Hill PHOENIX regarding a specific
fixture, be sure to know the case model number and serial number. This information is on
the serial plate located on the top flue panel of the case (see next page for details). Ask for
a Service Parts Representative at 1-804-526-4455.

39 11/16 in [100.7 cm]

Amp Plate &
Serial Plate
Location

19 3/16 in
[48.7 cm]

5" EXTENDED FRONT
W/ NOSE LIGHT

3rd ROW LIGHT
(OPTIONAL)

50 13/16 in [129.0 cm] THROAT

7 1/2" EXTENDED FRONT
W/ NOSE LIGHT
48 5/16 in [122.7 cm] THROAT

9.75" MIRROR
(OPTIONAL)
13" MIRROR
(OPTIONAL)

100 13/16 in
[256.1 cm]

59 in
[149.9 cm]

102 7/8 in
[261.3 cm]

26 3/16 in
[66.6 cm]

23 11/16 in
[60.2 cm]

55 13/16 in
[141.7 cm]
THROAT

19 1/2 in
[49.6 cm]

STANDARD
DAIRY FRONT

2 1/2" EXTENDED FRONT
W/ NOSE LIGHT
53 5/16 in [135.4 cm] THROAT

22 in
[55.9 cm]

5" EXTENDED FRONT

50 13/16 in [129.0 cm] THROAT

32 in [81.3 cm]

COIL

PLENUM

18 11/16 in
[47.5 cm]
14 1/2 in
[36.9 cm]

5 1/8 in
[13.1 cm]

23 11/16 in
[60.2 cm]

21 3/16 in
[53.9 cm]
17 in
[43.2 cm]

19 1/2 in
[49.6 cm]

6 13/16 in [17.2 cm]*
31 9/16 in [80.2 cm]
39 1/4 in [99.7 cm]

MODEL
O5DMA

43 1/4 in [109.9 cm]

3 in [7.6 cm]

12 in
[30.5 cm]

JUNCTION BOX

3 in [7.6 cm]

DRAIN PAN
9 7/8 in
[25.1 cm]

39 1/4 in
[99.7 cm]

31 9/16 in
[80.2 cm]
35 1/16 in
[89.0 cm]

43 1/4 in
[109.9 cm]

6 3/16 in [15.7 cm]

CONDENSING UNIT
DRAIN ASSEMBLY

1 1/2 in [3.8 cm]
{END}

CL
FRONT OF CASE
48 in [121.9 cm] {4' case}
72 in [182.9 cm] {6' case}
96 in [243.8 cm] {8' case}
NOTES:
FRONT SILL HEIGHT AND OVERALL CASE HEIGHT VARYS WITH BASEFRAME HEIGHT
A 2" MINIMUM AIR GAP IS REQUIRED BETWEEN THE REAR OF THE CASE AND A WALL
z AVAILABLE SHELF SIZES: 10", 12", 14", 16", 18", 20", 22" & 24"
z
z

CASES
MOVE ON

CASTERS
FOR EASIER INSTALLATION
ORIGIN2 cases are manufactured and shipped to
stores with casters installed on the base frame to
make the job of moving cases easier for everyone
involved with the manufacturing, shipping and installation process.

Casters not only speed up the process, but they also
reduce the chance of damage from raising and lowering cases with ”J” bar to place them on dollies,
skates or rollers. In most situations, one or two persons can move the case with ease.

ROLL TO LINEUP POSITION. Casters may remain in
place to move the cases to staging areas around the
store, prior to final installation. When ready for final
line-up, roll the case to set position, then remove
casters.

CASTERS MAY BE DISCARDED.

ROLL OUT OF TRUCK. When there is a truck - level
delivery dock, cases may be rolled directly from the
truck to the store floor. [CAUTION] If skid boards are
required to unload cases, casters should be removed
prior to sliding them down the skid; after which they
can be reinstalled on case.

REMOVE COTTER PIN. Removing the casters is
easy. Simply flatten and hammer out cotter pins
then lift the case with “J” bar, and the casters will
fall off.
[CAUTION] Make certain hands are out of the way.

INSTALLATION
The end kickplates, which are also
shipped in the case, are attached to the
baseframes directly under the ends with the
screws provided. There are two, smoke grey
plug buttons that are inserted into each end
kickplate to cover the screw holes, see illustration 2 below.

The O5DMA is shipped with most of
the exterior panels and trim already installed.
The only exterior parts that need to be
installed when the case arrives are the kickplate and the end kickplates. If the cases are
equipped with contour front panels the upper
kickplate retainer is also shipped loose with
the case.
The kickplate, which is shipped in the
case, simply slips up and behind the front
panel and then down onto the “J” rail. See
illustration 1 below for details.
When
installing the upper kickplate retainer make
sure it is placed behind the front panel lip as
shown in illustration 1 below.
FLAT FRONT PANELS

CONTOUR FRONT PANELS

FRONT PANEL
FRONT PANEL LIP
UPPER KICKPLATE
RETAINER

KICKPLATE
KICKPLATE

“J” RAIL

END

BASEFRAME

END KICKPLATE
SCREW
PLUG BUTTON

REFRIGERATION PIPING
The expansion valve and other controls
are located on the left-hand side of the case
and are accessible without lifting the fan
plenum. The controls cluster may be reached
by lifting only the left hand deck pan minimizing the need to unload product. The compressor and condensing unit are located on top of
the case for easy access.

The diagram below illustrates all of the
refrigeration components in the O5DMA.
The components surrounded by the box are
located in the case tank. Basic definitions of
these components are listed on the following
page.
If it becomes necessary to penetrate
the case bottom for any reason, make certain
it is sealed afterward with canned-foam
sealant and caulk.

Evaporator

Tank
Area

TXV
Bulb
Evaporator
Fans

1/4”
Access
Valve

TXV

Flow Direction

Dual Pressure
Control

Accumulator

Filter
Drier
Condenser
Sight
Glass

Suction Line
Solenoid
Service
Valve
Service
Valve

Compressor

Receiver
Condenser
Fans

COMPONENT DEFINITIONS
Access Valve - Access port on the evaporator that allows service personnel to check system pressure.
Accumulator - A device installed on the suction line that is used to boil off small amounts of liquid
refrigerant so liquid does not reach the compressor.
Compressor - An electrically driven piston pump that pumps vapor refrigerant from a low pressure
level to a higher pressure level.
Condenser - The component in a refrigeration system that transfers the heat that was absorbed by
the refrigerant in the evaporator and the heat of compression from the system by condensing the
refrigerant.
Condenser Fans - Fan that forces air through the air cooled condenser to aid heat transfer.
Dual Pressure Control - A device that protects the compressor from low charge and high pressure.
Evaporator - The component of the refrigeration system that absorbs heat from the air by boiling
liquid refrigerant to vapor.
Evaporator Fans - Fans that circulate air through the case and force air through the evaporator to
aid heat transfer.
Filter Drier - A device installed on the liquid line of a refrigeration system that removes water and
other impurities from the refrigerant in the lines during initial start-up.
Receiver - The component in a refrigeration system that stores liquid refrigerant that is not being
used by the system in low load conditions or when the system is shut down.
Service Valve - A manually operated valve in the refrigeration system that is used for various service operations such as isolating the high or low sides of the system.
Sight Glass - A device installed on the liquid line of a refrigeration system that is used to determine
if there is water or vapor in the lines by visual inspection.
Suction LIne Solenoid - A device that prevents liquid from entering the compressor.
Thermostatic Expansion Valve (TXV) - A valve that controls the flow of liquid refrigerant to the
evaporator coil and also separates the high pressure side of the system from low pressure side of
the system.
Thermostatic Expansion Valve (TXV) Bulb - A bulb that is attached to the suction line of the evaporator that controls the TXV. Inside the bulb is a charge that reacts to temperature and regulates
the flow of refrigerant through the expansion valve.

PLUMBING
The case run-off is channeled to a
drain pan located underneath the case as
shown below. The water is then pumped up
to an evaporative drain pan on top of the
case where an electric heater evaporates the
run-off. When cleaning the case be sure not
to introduce water faster than the drain pump
can carry it away.

All of the plumbing components are
attached to the case at the factory so there
is no assembly required. The case drain is
located front and center of the cases for
convenient access and is specially molded
out of ABS material. The “P” trap, furnished
with the case, is molded of PVC. Should any
future maintenance issues arise care should
be given to assure that all connections are
water tight and sealed with the appropriate
PVC or ABS cement.

HEATERS

EVAPORATIVE
DRAIN PAN

MODEL
O5DMA

DRAIN PAN

DRAIN PUMP

CASE DRAIN

ELECTRICAL HOOKUP
The drain pump is plugged into a
receptacle mounted under the case, as
shown below. The receptacle is intended for
use with the drain pump only and not as a
power supply for peripheral equipment.

Electrical connections for the O5DMA
are made in the field connection junction box
located at the top left rear of the case, see diagram below.

CONTROL
MODULE

FIELD CONNECTION
JUNCTION BOX

RECEPTACLE

DRAIN PUMP

DANGER
Electrical Shock Hazard
Always disconnect power to case
when servicing or cleaning.

HIGH
PRESSURE

ELECTRICAL HOOKUP
HOW TO ACCESS BALLASTS
This display case is equipped with specially designed light reflectors in the cornice to improve
the illumination of products. Electronic ballasts operate both the cornice and shelf lights and
are located behind the reflectors.
To gain access to the ballasts the reflectors may be easily removed be removing a several
screws along the length of the reflector. See below.

BALLAST

REFLECTOR
SCREWS

LAMP

CROSS SECTIONAL VIEW OF CORNICE LIGHT AREA

1. Remove lamps by pulling
down at both ends.

2. Remove screws along length
of the reflector.
3. Reflector is now free to
remove.
4. Ballasts are located behind.
REMOVE
SCREWS

5. To replace, reverse procedure.
First insert reflector in front
channel then replace the
screws in the reflector.

1
3
10

CONTROL
SETTINGS
Johnson Controls
Fan
Status
LED

Defrost Compressor
Status
Status
LED
LED

Manual Defrost
Button

Up
Button

Enter
Button

Down
Button

Factory Control Settings
Parameter
HY
LL
HL
CC
Co
AH
AL
Ad
At
dF
dE
dt
di
dd
dC
dU
dP
dr
iF

id
FF
Fd
Fr
SF
So
Un
PU

Description
Setpoint
Hysteresis (differential) [1 to 9oF/oC]
Setpoint Low Limit [67oF (55oC) to HL]
Setpoint High Limit
[LL to 99oF/oC]
Anti-Short Cycling Timer [0 to 9 min.]
Deep Freeze Cycle Time [0 to 99 min.]
High Temperature Alarm Value (degrees above setpoint) [0 to 55oF/oC]
Low Temperature Alarm Value (degrees below setpoint) [-50 to 0oF/oC]
Alarm Differential [1 to 9oF/oC]
Alarm Time Delay [0 to 99 min.]
Defrost Type (0-electrical; 1-hot gas)
Defrost End Mode (0-timed defrost; 1-temperature terminated defrost)
Defrost Termination Temperature [32oF to 68oF (0oC to 20oC)]
Defrost Interval [0 to 99 hours]
Maximum Defrost Duration [1 to 99 min.]
Dripping Time After Defrost [0 to 99 min.]
Initial Defrost Interval (time before first defrost after startup) [0 to 99 min.]
Defrost Display (0-displays last value before defrost; 1-displays setpoint)
Display Delay After Defrost [1 to 99 min.
Digital Input Type (0-no digital input;
1-if digital input open, compres. off w/alarm on:
2-if digital input open, alarm on (contacts closed);
3-if digital input open, fan off w/alarm on)
Digital Input Time Delay [0 to 99 sec.]
Fan Function (0-fan runs parallel with compressor; 1-fan on)
Fan Start-Up Delay (after defrost) [0 to 99 min.]
Fan Start-Up Temp. [-22oF to 41oF/-30oC to 5oC]
Sensor Failure Operation (0-compressor off; 1-compressor on;
2-compressor on/off based on last 4 cycles)
Temperature Sensor Offset [-20o to 20oF/oC]
Units Used (0-oC; 1-oF)
Display Refresh Rate [1 to 99 sec.]

Factory Settings
O5DMA
38
2
-10
73
0
0
20
-10
5
3
0
1
44
6
42
0
99
0
20
0

0
1
5
40
1
0
1
1

CONTROL
SETTINGS
Johnson Controls

To program parameters:

Error Code
F1 Indicates an open or
shorted temperature
sensor. Cycle Power
to reset control.

F2 Indicates an open or
shorted evaporator
sensor. Correct
problem to reset
control.

A1 Digital input was open
for longer than time
delay (id) and digital
input option (if) 1 is
selected.

A2 Digital input is closed

1. Hold the “Enter” button down for
about 10 seconds. The display will
change to “Hy.”

System Status
Alarm output on compressor
runs according to the sensor
failure mode selected (parameter sf)

2. Press the “Up” and “Down” button
until the desired parameter is shown

3. Press the “Enter” button. The parameter’s current value will be shown.

Alarm output on defrost
cycle is controlled by parameters di (defrost initiation)
and dd (defrost duration)

4. Press the “Up” and “Down” button
until the desired value is shown.

5. Press the “Enter” button to save the
new value. After 10 seconds of inactivity, the display will return to its normal
function.

Compressor off
Alarm output on

To change setpoint:
Alarm output is on

1. Hold down the “Enter” button down
for 3 seconds. The display will change
to show the setpoint.

Fan output is off
Alarm output is on

2. Press the “Up” or “Down” button until
you reach the new setpoint.

and digital input option
(if) 1 is selected.

A3 Digital input is open
for longer than time
delay (id) and digital
input option (if) 3 is
selected.

3. Press the “Enter” button to save the
new setpoint.

Temperature has
exceeded the high
temp. alarm value (AH).

Alarm output is on

LO Temperature has fallen

Alarm output is on

To lock and unlock the unit:

}

below the low temp.
alarm value (AL).

To Initiate a deep freeze cycle:

}

EE Program failure: control Alarm output is on
must be replaced.

Press the “Enter,” the “Up,” and the
“Down” buttons in sequence and hold
them all down until “- - -” is displayed.
Hold for about 10 seconds until the
current temperature is displayed.

Other outputs off

To Initiate Manual Defrost:

Press and the “Enter” and “Up” buttons
in sequence and hold for five seconds.
The compressor status LED will light.

To Initiate Self-Test:

Hold the Defrost button down for 3
seconds.

}
12

IMPORTANT: Disconnect loads before
beginning self test. Cycle power to
resume operation.
Press the “Up” and the “Down” buttons
in sequence and hold for 5 seconds.

CONTROL SETTINGS
ESC3 Controls
Operation
Temperature Control
Temperature control in the ESC3 is accomplished by comparing the temperature reading of the case temperature
probe against the temperature setpoint. The compressor output is used to control the temperature. If the temperature is
above the temperature setpoint (L1) + the hysteresis setpoint
(rd), the compressor output is turned on (subject to the conditions described in the compressor operation sec-tion). If
the temperature is below the temperature setpoint – the hysteresis set-point, the compressor output is turned off. Note
that the compressor output can also be used to control a
refrigeration solenoid to regulate the temperature in a case.
Compressor Control
Several setpoints are available that allow the operation of the
compressor output to be tailored to match individual needs.
Min On/Off Times and Minimum Cycle Time
Minimum ON/OFF compressor times can be specified, as
well as a minimum time delay between compressor cycles.
These parameters help prevent short-cycling.
Compressor Power ON Delay
The compressor power on delay set-point (c0) allows the
user to specify a delay after the power up of the controller.
The compressor output will not come on regardless of the
temperature reading, until this amount of time has expired.
Compressor Safety Cycle
If the temp sensor fails, the ESC3 can be programmed to
cycle the compressor ON for a fixed amount of time, followed
by a 15-minute OFF time, until the probe failure is fixed. You
may also specify the compressor be fully ON or OFF during
probe failure.
Fan Control
The fan output is controlled by the ESC3 based on the current operating mode (defrost, cooling, etc.) and the setpoints
which affect fan operation. It may be set to run only when
required based on case temperature, or it may be set to be
always ON regardless of temperature. In addition to these
two basic modes, you may also turn the fans OFF during
defrost, specify the fan will be ON only when the compressor
is running, and delay fan activation after defrost drip time.
Defrost Control
The ESC3 can control the defrost function of a case. The
ESC3 executes defrost cycles at a user-defined time interval.
Electric, Off Cycle and Hot Gas defrost types are supported.

The ESC3 features a number of options to customize
operation and termination of a defrost cycle. A defrost
cycle can be terminated based on time or temperature.
When termination by temperature is used, a minimum
and maximum defrost time can be specified.
You may also program the ESC3 to begin a defrost cycle
after power-up (after a user-defined delay time) and initiate a defrost manually (see the description for “Defrost
Key” on this page).
Alarm Control
The ESC3 has several alarm functions. In addition to
alarms based on high and low air temperatures, it will
alarm if a probe failure is detected. If you are using
defrost, the ESC3 will also generate an alarm when the
defrost cycle did not terminate as expected (such as
when the ESC3 is programmed to terminate at a temperature set point and the set point was never reached).

Interface
The ESC3 features a 3 digit LED display that shows the
case temperature. Alternately, the display can be configured to display the product temperature if a product temperature probe is connected. The temperature can be
displayed in either °C or °F.
Three keys on the front panel provide an indication of
operating status as well as allowing setpoints to be
changed.
Alarm Key
The Alarm key illuminates when the controller has detected an alarm condition. This key is also used to reset an
alarm condition and to enter the setup mode (allowing
setpoints to be changed).
Compressor Key
The Compressor key illuminates when the compressor
output is on. When the ESC3 is in setup mode, this key is
used to select a setpoint to be modified and to change the
value of the setpoint.
Defrost Key
The Defrost key illuminates when the ESC3 is in defrost
mode. Press the defrost key for 5 seconds to go into manual defrost mode. The key is also used in setup mode to
select a setpoint to be modified and to change the value
of the setpoint.

CONTROL
SETTINGS
ESC3 Controls
Table 1

Alarm Operation

Code
E0
E1
LO
HI
Ed

Indications on the Display
If the defrost, or compressor key blinks, it means that the
corresponding function is delayed by a timing routine or
inhibited. Other two-character messages may appear on
the screen to indicate changes of state or alarm conditions. Values shown in Table 1.
Viewing and Changing the Temperature Setpoint
The temperature setpoint is the comparison point for the
control temperature input. To change the set point value:

Meaning
Air probe has failed
Defrost termination or product probe has failed
Low temperature alarm
High temperature alarm
Defrost timeout has occurred
(did not terminate correctly)
Case is in defrost (not an alarm)

ESC3 Case Controller

1. Press the Alarm key for more than 5 seconds until the
setpoint is displayed and blinking.
2. Press the Compressor key and Defrost keys to
raise/lower the value.
3. Press the Alarm key again to accept the new value.

Compressor Key
Alarm Key

Defrost Key

Changing Other Setpoints
There are two levels of setpoints in the ESC3. The first
level does not require a password to change (unless the
buttons are locked out). The setpoints that can be
changed in this manner are identified in Table 1 (back
side) as a USER setpoint. All other setpoint do require a
password to change and are identified in Table 2 (back
side) as an OEM setpoint. To change USER-level setpoints:
K1
R1

1. Press the Alarm key and hold it until the letters PS are
displayed.
2. Use the Compressor and Defrost key to scroll through
the codes for the different set points (see Table 1 and
Table 2).
3. When the code is displayed for the setpoint you wish to
change, press the Alarm key. The value for that
setpoint will be displayed.
4. Press the Compressor or Defrost key to change the
value
5. Press the Alarm key to go back to the code.

Def temp

Common

Amb temp

Defrost

Fan

Compressor

Neutral

120Vac

At this point you must press the Alarm key to accept the
change or press the Compressor or Defrost key to scroll
to the next USER setpoint. To accept the changes, press
and hold the Alarm key until the display stops flashing. To
change OEM-level setpoints, the password must be
entered. To do this press and hold the Alarm key until the
letters PS are displayed. When PS is displayed release
the alarm key and 0 will be displayed. Press the
Compressor or Defrost keys to enter the password (22 is
the default) then press the Alarm key. PS will be displayed again. At this point, pressing the Compressor or
Defrost key will scroll through the legend for all setpoints.
To change the setpoints, use the identical procedure that
is used to change a USER setpoint.

120V Hot

K2
1

4
Control Input

0.39 A, 120 Vac, 60 Hz

Common Input

11.2 A, 120 Vac, 60 Hz

Fan Output
Compressor Output
(K2)

1 FLA, 6 LRA, 120 Vac, 60 Hz
1.5 HP @ 120 Vac
(external relay #841-S-1A-D
by Song Chuan)

Defrost Output

10.0 A, 120 Vac, Resistive, 60 Hz

(P/N 850-3500 only)

User Level Setpoints - O5DMA
Code
PS
/C
rd
dI
dt
dP
dd
d8
d/
AL
AH
F1
Fd
H5
T

Parameter Name
Min
Setpoint
Password
0
Offset for air temp sensor
-127
(in tenths of a degree: i.e. a value of “1” adds 0.1° to value)
Regulator differential (superheat) set point (a “0” in this field = 0.5°C or 0.5°F)
0
Time between defrost cycles (defrost interval)
0
Defrost temperature termination set point
-50
Max duration of defrost if using electric or hot gas defrost, or the actual
1
duration of defrost if doing timed defrost
Drip time
0
Alarm delay after defrost
0
Defrost probe reading (read-only)
Low temperature alarm differential (subtract this value from the temperature
0
set point to get low alarm temperature set point) (0 = no low temp alarming)
High temperature alarm differential (add this value to the temperature set
0
point to get high alarm temperature set point) (0 = no high temp alarming)
Fan on at temperature set point (used if F0 = 1)
-50
Fan delay after defrost drip time for each F0 value
0
ID code for programming key
-99
External parameter programming
-99

Max Units
°C/°F
199
127 °C/°F

O5DMA
38
22
0

19 °C/°F
199 hours
127 °C/°F
199
min

3
6
44
42

15
15

min
hours
°C/°F
127 °C/°F

-10

127 °C/°F

199 °C/°F
15
min
+
199

5
1
8

0
1

WIRING DIAGRAMS-

MODEL
O5DMA

CASE OPERATIONS

Multi-Deck Self-Contained Produce/Dairy/Deli Merchandiser
O5DMA - 4’, 6’ & 8’
System Requirements

Model
O5DMA

4’
6’
8’

Volts

Phase

Wire

Minimum
Circuit
Ampacity

Maximum
Overcurrent
Protection

208
208
208

1
1
1

60
60
60

3 wire + ground
3 wire + ground
3 wire + ground

22.096
23.034
23.934

35
40
45

Drain
Pump
120 Volts

Evap. Pan
Heater
208 Volts

Electrical Data
Condenser
Standard Fans
Fan
120
Volts
208
Volts
Fans per
Case
Amps Watts Amps Watts

Model
4’
6’
8’

O5DMA

2
2

60
60
90

1.00
1.00
1.50

0.85
1.10
2.60

Amps

Watts

Amps

1.10
1.10
1.10

66
66
66

7.21
7.21
7.21

88
114
270

Maximum
Lights
120 Volts

Watts Amps
3.18
4.59
4.59

1500
1500
1500

Watts
382
551
551

Guidelines & Control Settings
24 hr Energy Suction Pressure @ Superheat Set Point Discharge Air Return Air Discharge Air Velocity1
@ Bulb (oF)
(FPM)
Usage (kWh) Case Outlet (psig)
(oF)
(oF)

Model

O5DMA-4’

6-8

250

O5DMA-6’

6-8

250

O5DMA-8’

6-8

250

Average discharge air velocity at peak of defrost.

Condensing Unit Data
Model

Volts

Phase

Frequency
(Hz)

RLA2
(amps)

LRA3
(amps)

Refrig.

lbs of
Refrig.
4.5

O5DMA-4’

208

9.6

R404A

O5DMA-6’

208

1 3/4

10.9

R404A

O5DMA-8’

208

12.4

R404A

RLA - Running Load Amps.

LRA - Locked Rotor Amps.

Defrost Controls
Electric Defrost

Model

Defrosts
Per Day

O5DMA

Fail-safe
(min)
---

Timed Off Defrost

Hot Gas Defrost

Reverse Air Defrost

Termination
Temp. (°F)

Fail-safe
(min)

Termination
Temp. (°F)

Fail-safe
(min)

Termination
Temp. (°F)

Fail-safe
(min)

Termination
Temp. (°F)

---

NOTE: - - - not an option on this case model.

Medium Temperature Defrost Schedule
No. Per Day
1
2
3
4

Hours
12 midnight
12 am - 12 pm
6 am - 2 pm - 10 pm
12 - 6 am - 12 - 6 pm

All measurements are taken per CRMA specifications.

DEFROST AND TEMP CONTROL
The O5DMA uses timed off defrost as
its primary defrost method. The timed-off
defrost termination control probe is located in
the middle fo the coil near the top as shown in
the diagram below. Access to the probe can
be gained by removing the lower rear baffle.

The temperature control probe is located
behind the 3 1/2” plug button in the top flue
panel, also shown in the diagram below. Both of
these probes are wired to the case controller
mounted on top of the case.

Temperature control probe location
(Behind the 3 1/2” plug button).

Timed-Off defrost termination control
probe location (In center of coil near
top of coil).

AIR FLOW AND PRODUCT LOADING
Cases have been designed to provide maximum product capacity within the refrigerated
air envelope. It is important that you do not
overload the food product display so that it
impinges on the air flow pattern.

Overloading will cause malfunction and the
loss of proper temperature levels, particularly when discharge and return air sections are
covered. Please keep products within the
load limit lines shown on these diagrams.

DISCHARGE..............1
LOAD LIMIT...............2
AIR FLOW..................3

RETURN AIR GRILL...4

2
3

MODEL
O5DMA

USE AND MAINTENANCE
The coil is covered to keep food fluids from entering, but
the cover lifts up easily when coil cleaning is desired. The
single piece fan plenum lifts up for cleaning, exposing a
major portion of the inside bottom of the tank. Make certain fan plenum is properly closed after cleaning to avoid
air leaks. Front return air grills snap out for cleaning; no
fasteners are used.

CASE CLEANING
Case is designed to facilitate cleaning. There is a wide
radius formed on the front and back of the inside bottom
that helps accelerate liquid flow and eliminates difficult-toclean sharp corners. All surfaces pitch to a deep-drawn
drain trough that angles toward the front and center of case
where the waste outlet is located for easy access.

In order to keep the unit running at peak design
efficiency the air intake grill and the condenser coil should
be cleaned at least once a month.

SINGLE PIECE FAN
PLENUM SWINGS
UP FOR EASY
CLEANING

PLENUM
COIL

HONEYCOMB

LOOSEN
SCREW

SLIDE REAR HONEYCOMB
RETAINER BACK AND
REMOVE HONEYCOMB

POSITIVE DRAIN OFF

SINGLE PIECE FAN PLENUM LIFT UP

CLEAN HONEYCOMB

CLEANING PROCEDURES
• A periodic cleaning schedule should be established to maintain proper sanitation, insure maximum operating efficiency, and
avoid the corrosive action of food fluids on metal parts that are left on for long periods of time. We recommend cleaning once
a week.
• To avoid shock hazard, be sure all electrical power is turned off before cleaning. In some installations, more than one
disconnect switch may have to be turned off to completely de-energize the case.
• Check waste outlet to insure it is not clogged before starting the cleaning process and avoid introducing water faster than the
case drain can carry it away.
• Avoid spraying cleaning solutions directly on fans or electrical connections.
• Provide a temporary separator between those cases which are being cleaned and those which are not.
• Allow cases to be turned off long enough to clean any frost or ice from coil and flue areas.
• Remove and clean discharge honeycomb. You may need to use spray detergent and a soft, long bristle brush.
• Use mild detergent and warm water. When necessary, water and baking soda solution will help remove case odors. Avoid
abrasive scouring powders or pads.
• Remove front panels and clean underneath the case with a broom and a long handled mop. Instructions for removing the
front panels can be found on page 6 of this manual.
• Use warm water and a disinfecting cleaning solution when cleaning underneath the cases.

DANGER
Electrical Shock Hazard
Always disconnect power to case
when servicing or cleaning.

20
HIGH
PRESSURE

FANS

The evaporator fans are equipped with either
9 watt fan motors, 1550 RPM’s, or 12 watt fan
motors, 1650 RPM’s. Both motors have a counter
clockwise rotation when viewed from the shaft end.
The fan blades are 8” in diameter and the blades are
pitched to 37 degrees on each model as shown on
the chart below. It is important that the blade
pitch be maintained as specified.
Do not
attempt a field modification by altering the
blades.
Fan motors may be changed with an easy
two-step process without lifting up the plenum,
thereby avoiding the necessity to unload the entire
product display to make a change:

1. Unplug the fan motor, easily accessible out
side the plenum
MODEL O5DMA

2. Remove two fasteners, then lift out the
entire fan basket
NO.
FANS

WARNING
Disconnect power to the fans
before cleaning or servicing
case .

BLADE
PITCH

HIGH
PRESSURE

4’

6’

8’

37º

MODEL
O5DMA-4’
& O5DMA-6’

MODEL
O5DMA-8’

PARTS ORDERING
51

E19
25
22
13

15
36
20

9
88
11

3
26

2
17

E10

E09

E11
E20

E06

E07

Model O5DMA
Location
Number
1
2
3
9
11
12
13
15
17
19
20
22
24
25
26
36
38
50
51
69
75
81
82
83
86
87
88
E05
E06
E07
E08
E09
E10
E11
E19
E20

Part Descriptions
Kickplate, PVC Extrusion, Storm Grey
Master Bumper, Featherstone, Smoke, White, French Vanilla, Black
Lower Front Panel, (only with curved front panel) Painted or Stainless
Deck Pan, Painted, Unpainted, Stainless
Front Baffle, Aluminum, Painted White, Custom Color, or Stainless
Honeycomb, Discharge
Rear Honeycomb Retainer, Painted White, Custom Color, or Stainless
Upper Rear Baffle, Painted White, Custom Color, or Stainless
Nose Bumper, PVC Custom Color
Cornice, Painted, Stainless Steel
Lower Rear Baffle, Painted White, Custom Color, or Stainless
Shelves, Lighted or Unlighted, Painted White, Custom Color or Stainless
“J” Rail, for Kickplate
Top Flue Panel, Painted White, Custom Color, or Stainless
Front Panel, Curved (Shown) or Flat, Painted Custom Color
Plug Button
Shelf Package Stop, Plexiglas or Wire Fence
Lamp Shield
Compressor Shroud
Coil
Drain Pan, Stainless Steel (Not Shown, located on top of case)
Wire Racks, On Deck Pan (Not Shown)
Shelf Tag Moulding
Thermometer, Including Bracket (Not Shown)
Light Reflector, Specify With or Without Hole, Painted or Stainless
End Assembly
End Kickplate
Light Switch, (Not Shown)
Lamp Holder
Lamp
Ballast, (Not Shown)
Fan Motor - STATE HIGH EFFICIENCY OR STANDARD
Fan Blade, 8”
Fan Basket, 8”
Receptacle, Recessed, Shelf Light Outlet, White (Not Shown)
Fan Cord-Set, High Efficiency or Standard

PARTS ORDERING
Procedure
1. Contact the Service Parts Department
Hill PHOENIX
1925 Ruffin Mill Road
Colonial Heights, Virginia 23834
Tel: 800-283-1109
Fax: 804-526-3897

2. Provide the following information about the part you are ordering:
• Model number and serial number of the case on which
the part is used.
• Length of part, if applicable, I.E. 4’, 6’, 8’.
• Color of part if painted, or color of polymer part.
• Whether part is for left hand or right hand application.
• Whether shelves are with or without lights.
• Quantity
*Serial plate is located on top flue panel on the right hand side of
the case (See illustrations on page 3).
3. If parts are to be returned for credit, ask the Parts Department to
furnish you with a Return Materials Authorization Number.

NOTES

WARRANTY
HEREINAFTER REFERRED TO AS MANUFACTURER
FOURTEEN MONTH WARRANTY. MANUFACTURER’S PRODUCT IS WARRANTED TO BE FREE FROM
DEFECTS IN MATERIAL AND WORKMANSHIP UNDER NORMAL USE AND MAINTENANCE FOR A
PERIOD OF FOURTEEN MONTHS FROM THE DATE OF ORIGINAL SHIPMENT. A NEW OR REBUILT
PART TO REPLACE ANY DEFECTIVE PART WILL BE PROVIDED WITHOUT CHARGE, PROVIDED THE
DEFECTIVE PART IS RETURNED TO MANUFACTURER. THE REPLACEMENT PART ASSUMES THE
UNUSED PORTION OF THE WARRANTY.
This warranty does not include labor or other costs incurred for repairing, removing, installing, shipping,
servicing, or handling of either defective parts or replacement parts.
The fourteen month warranty shall not apply:
1. To any unit or any part thereof which has been subject to accident, alteration, negligence, misuse or
abuse, operation on improper voltage, or which has not been operated in accordance with the
manufacturer’s recommendation, or if the serial number of the unit has been altered, defaced, or removed.
2. When the unit, or any part thereof, is damaged by fire, flood, or other act of God.
3. Outside the continental United States.
4. To labor cost for replacement of parts, or for freight, shipping expenses, sales tax or upgrading.
5. When the operation is impaired due to improper installation.
6. When installation and startup forms are not properly complete or returned within two weeks after startup.
THIS PLAN DOES NOT COVER CONSEQUENTIAL DAMAGES. Manufacturer shall not be liable under any
circumstances for any consequential damages, including loss of profit, additional labor cost, loss of
refrigerant or food products, or injury to personnel or property caused by defective material or parts or for
any delay in its performance hereunder due to causes beyond its control. The foregoing shall constitute
the sole and exclusive remedy of any purchases and the sole and exclusive liability of Manufacturer in
connection with this product.
The Warranties are Expressly in Lieu of All Other Warranties, Express of Implied and All Other
Obligations or Liabilities on Our Part. The Obligation to Repair or Replace Parts or Components
Judged to be Defective in Material or Workmanship States Our Entire Liability Whether Based on Tort,
Contract or Warranty. We Neither Assume Nor Authorize Any Other Person to Assume for Us Any
Other Liability in Connection with Our Product.

MAIL CLAIM TO:

Hill PHOENIX

Display Merchandisers
1925 Ruffin Mill Road
Colonial Heights, VA 23834
804-526-4455

Refrigeration Systems &
Electrical Distribution Products
709 Sigman Road
Conyers, GA 30013
770-285-3200

6/00

Warning
Maintenance & Case Care
When cleaning cases the following must be performed
PRIOR to cleaning:
To avoid electrical shock, be sure all electric power is
turned off before cleaning. In some installations, more
than one switch may have to be turned off to completely
de-energize the case.
Do not spray cleaning solution or water directly on fan
motors or any electrical connections.
All lighting receptacles must be dried off prior to insertion
and re-energizing the lighting circuit.
Please refer to the Use and Maintenance section of this installation manual.

804-526-4455
1925 Ruffin Mill Road, Colonial Heights, VA 23834
Due to our commitment to continuous improvement all specifications are subject to change without notice.
Hill PHOENIX is a Sustaining Member of the American Society of Quality.
Visit our web site at www.hillphoenix.com
ASH4021

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