International Refrigeration Products MEDALLION Series Manual

APPLICATION:
This thermostat is a programmable 24 volt Heating Digital
Temperature Control. It can be used for residential and light
commercial systems. Both models are ideal for use with most
heating systems. The large easy to read display makes the
thermostat easy to operate and simple to program.
The TDMP24-H1-CB is hard-wired and has backlighting for
ease of reading in the dark.
Please refer to the owner’s manual for programming instructions.
MEDALLION SERIES
INSTALLATION / OPERATING INSTRUCTIONS
72.3 F
0
Manual
Actual
TEMP
OFF HEAT
Increase
Temperature
Heat
Icon
System
Switch
Decrease
Temperature
24V Class II
Supply Transformer
Damper
Connection
Heat
B
C
R
Heat
Relay
Stage 1
W
TDMP24-H1-CB
1. Caution: Make sure that power has been disconnected.
2. All wiring must comply with applicable codes and ordinances.
3. A thorough check-out of the system should be made after
installation is complete.
4. If retrofitting old thermostat, remove old thermostat from wall,
carefully noting the wire connections on the old unit. Record
wire color and terminal legends in spaces provided.
5. Using the mounting screws provided, mount the thermostat to the
wall or junction box.
6. Connect wire cables according to your wire color chart.
7. Push excess cable wires back into the wall while positioning
thermostat. If there is a draft, pack the opening with non-
combustible material.
!
SPECIFICATIONS:
Setpoint Temperature Range: 40.0°F to 95.0°F (5.0°C to 35.0°C)
Liquid Crystal Display (LCD)Display Format:
Sampling Rate: Every 30 seconds
Accuracy: ± 1°F
24V, 30V maximum AC or DCPower Source:
Class II Supply and Wiring
Load Rating: 1 Amp maximum total load
Heat Control: 1 heat circuit
General Installations:
This device should be installed and serviced by a qualified
technician. Junction box mounting is highly recommended.
Terminal
function
24V Feed
Single 24V Common
Damper (Heat)
Heating
Thermostat
terminals
R
C
B
W
Cable
wire color
1
Refrigeration Products
International
IRP
International Refrigeration Products, Inc.
1035 Wheeler Way
Langhorne, PA 19047
Service:
Monday to Friday
8:00 AM to 4:30 PM EST
Tel: [phone]
Model: TDMP24-H1-CB

Cycle Rate Selection:
The cycle rate selection determines the cycle rate for heating. All
units are shipped with a cycle rate of 1.0, the medium rate. To
change the cycle rate press the “up” and “down” buttons together for
approximately 10 seconds. The display will change to diff and 1.0.
Use the “up” or “down” button to select a new cycle rate. After
approximately 15 seconds the display will return to normal.
Selection Criteria: 0.5 is the fastest cycle rate, 2.0 is the slowest.
Setting Parameters:
There are four parameters to set depending on the model. °F/°C
selection, backlight mode selection, display mode selection and cycle
rate selection.
°F/°C Selection:
All units are shipped in °F display mode. °C can be selected by
moving the jumper to the °C position. Press reset after changing
jumper position. Resetting °F/°C will erase any userWarning:
program schedule and replace it with the factory default schedule.
Blacklight Mode Selection: (Model TDMP24-H1-CB)
All units are shipped with the backlight jumper in the left position,
auto mode. The backlight comes on whenever the up or down button
is pressed. The backlight jumper in the right position keeps the
backlighting on continuously.
Display Button Selection:
All units are shipped with the display alternation between room
temperature, current setpoint and time-of-day. Pressing the display
button selects the display to show only room temperature or alternate
between actual room temperature, current setpoint and time-of-day.
Testing Basic Functions:
Check the basic functions in the manual mode. Turn the program
selection dial, located under the flip down cover, to “MANUAL”.
OFF:
1. With system switch in the “OFF” position, the thermostat turns off
the heating system.
2. Setpoint cannot be changed in the “OFF” position.
3. Actual room temperature will continue to be displayed.
Heat:
1. Set the system switch to “HEAT”.
2. The display will alternate between setpoint and actual room
temperature.
3. Press either “up” or “down” arrow twice to enter the “SET” mode.
Raise the setpoint by pressing the “up” button. To test, raise the
setpoint above room temperature. Heat should turn on within
3 minutes.
4. Press the “down” button to lower setpoint to 5°F below room
temperature. Heat should turn off in less than 1 minute.
Trouble Shooting Tests:
Using a voltmeter, confirm the supply voltage. With the system
switch in the OFF position, the voltage should measure between
18VAC and 30VAC from R and the other terminals. If you have
a 24V powered model, confirm supply voltage between R and C.
Briefly press the reset button to initialize the processor. The
LCD should power up.
To check Continuity: (Using a Voltmeter with all loads
connected)
When thermostat is calling for Heat, meter should read 0VACA)
from “R” to “W”. When Heat is deactivated, meter should read
24VAC from “R” to “W”.
950-0248
11/06/15
OFF HEAT
Reset
Disp
USE
BUTTONS
TO ADJUST
DISPLAY
LEAVE-RETURN
SCHEDULE 7 DAY
TIME NOW
DAY NOW
RUN PROG
MANUAL
RETURN
SLEEP
WAKE
LEAVE
TIME
TEMP
PROGRAM SELECTION
Manual
Actual
TEMP
5 DAY
72.3
°F/°C
Jumper
F
0
Reset
Button
Down
Button
Display
Button
Backlight
Jumper
Up
Button
2