OH-1202H Universal Humidity Touchscreen Thermostat Instruction Manual
Universal Humidity Touchscreen Thermostat
with Humidity/Dehumidity Control and
Automatic Heat/Cool Changeover Option
OH-1202H
Single Stage, Multi-Stage, Heat Pump
Installation and Operating Instructions
Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATINGTHIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
Programming Choices
7 Day
5+1+1 Day
Non-Programmable
APPLICATIONS
THERMOSTAT APPLICATION GUIDE
Maximum
Stages
Heat/Cool
Thermostat
Configuration Options
Thermostat
Applications
Gas, Oil, Electric, Heat Only,
Cool Only or Heat/Cool
Systems, 2 or 3 wire Hydronic
Zone (Hot Water or Steam)
Systems, 24 Volt or Millivolt
Single Stage 1
No Heat Pump (SS1)
1/1
2/2
Multi Stage 2
No Heat Pump (MS2)
Heat Pump 1 Single Stage Compressor
Single Stage Compressor Heat Pump Systems - up to 2
3/1
4/2
Heat Pump (HP1)
Stages Aux./Emergency Heat
Heat Pump 2
Two Stage or Two
Compressor Heat Pump
(HP2)
Two Stage or Two Compressor
Heat Pump systems - up to 2
Stages Aux./Emergency Heat
SPECIFICATIONS
Electrical Rating:
Battery Power. . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 37°C)
Rated Differentials:
Fast.
0.6°F
1.2°F
1.2°F
0.6°F
Slow
1.5°F
1.7°F
1.7°F
1.7°F
Heat (Single Stage/Multi-Stage). . . . . . . . . . . .
Cool (Single Stage/Multi-Stage) . . . . . . . . . . . .
Heat Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emer Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.
Shipping Temperature Range . . . . . . . . . . . . . . . . . -40 to +150°F (-40 to +65°C)
Dimensions Thermostat. . . . . . . . . . . . . . . . . . . . . . 4-9/16"H x 5-13/16"W x 1-3/16"D
Humidity Setpoint Range. . . . . . . . . . . . . . . . . . . . . 5 to 50%
Dehumidification Setpoint Range . . . . . . . . . . . . . . 40 to 95%
CAUTION
Topreventelectricalshockand/orequipmentdamage,
disconnect electric power to system at main fuse or
circuit breaker box until installation is complete.
!
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this prod-
uct may replace a product that contains mercury.
Mercury and products containing mercury must not be
discarded in household trash. Do not touch any spilled
mercury. Wearing non-absorbent gloves, clean up any
spilled mercury and place in a sealed container. For proper
disposal of a product containing mercury or a sealed
container of spilled mercury, place it in a suitable shipping
tion to send the product containing mercury.
Index
Installation
Page
2
3
5
6
10
12
15
Wiring Diagrams
Thermostat Quick Reference
Installer Configuration Menu
Operating Your Thermostat
Programming
Troubleshooting
PART NO. 37-7406A
1242
| General | Details |
|---|---|
| Name | OH-1202H Universal Humidity Touchscreen Thermostat Instruction Manual |
| Make | OH |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.42 MB |
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OH-1202H Manual: Questions and Answers
Can the OH-1202H thermostat work with a two-transformer system?
Yes. The thermostat is designed to operate a single-transformer or two-transformer system, depending on your fossil fuel or heat pump configuration. Instruction Manual, p. 3
What does Configuration Menu item 14 control on OH-1202H?
Selects temperature display units: °F for Fahrenheit or °C for Celsius. Instruction Manual, p. 6
What is the difference between Configuration Menu items 23 and 24 on OH-1202H?
| Item | Function |
|---|---|
| Item 23 | Temperature limit for heat; maximum heat set point, range 62-98 |
| Item 24 | Temperature limit for cool; minimum cool set point, range 46-82 |
What does the Copy key do on OH-1202H during programming?
It duplicates a program from one day to another or to multiple days without re-entering times and temperatures.
- Enter the program for the day you wish to copy, then press Copy
- Press Advance Day to select the destination day or days to receive the copied program
- Press Copy again to complete the transfer Instruction Manual, p. 12
What does System On +2 mean on the OH-1202H display?
A second stage of heating or cooling is operating. In Emergency Heat mode, it indicates auxiliary heat has engaged. In cooling mode, it shows the second stage cooling system is running. Instruction Manual, p. 11
How do I know if Hold mode is active on the OH-1202H?
Hold At will appear next to the setpoint temperature on the display. Instruction Manual, p. 11
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