Table of Contents
Advertisement
Quick Links
53DFS250-HW Thermostat
System Types
• Cool Only (single stage)
CAUTION: ELECTRICAL HAZARD
Can cause electrical shock or equipment damage. Disconnect power before
beginning installation.
MERCURY NOTICE: If this product is replacing a control that contains mercury in
a sealed tube, do not place the old control in the trash. Contact your local waste
management authority for instructions regarding recycling and proper disposal.
Must be installed by a trained, experienced technician. Read these instructions
carefully. Failure to follow these instructions can damage the product or cause a hazardous
condition.
Select Thermostat Location
Select a location for the thermostat about 5 ft (1.5m) above the floor in an area with good air
circulation at average temperature.
Do not install the thermostat where it can be affected by:
NO
NO
® U.S. Registered Trademark.
US Patent No. 7,114,554, 7,181,317, 7,225,054, 7,274,972, 7,636,604,
7,693,582 and other patents pending.
R
NO
YES
5 FEET
[1.5 METERS]
All rights reserved.
Installation
Guide
• Heat Pump (with electric heat)
• Drafts or dead spots behind doors
and in corners.
• Hot or cold air from ducts.
• Radiant heat from sun or
appliances.
• Concealed pipes and chimneys.
• Unheated (uncooled) areas such
as an outside wall behind the
thermostat.
M22258
R
69-2565-05
Advertisement
Table of Contents
Related Manuals for Carrier 53DFS250-HW
Summary of Contents for Carrier 53DFS250-HW
- Page 1 Installation Guide 53DFS250-HW Thermostat System Types • Cool Only (single stage) • Heat Pump (with electric heat) CAUTION: ELECTRICAL HAZARD Can cause electrical shock or equipment damage. Disconnect power before beginning installation. MERCURY NOTICE: If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal. Must be installed by a trained, experienced technician. Read these instructions carefully. Failure to follow these instructions can damage the product or cause a hazardous condition. Select Thermostat Location Select a location for the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at average temperature. Do not install the thermostat where it can be affected by: • Drafts or dead spots behind doors and in corners. • Hot or cold air from ducts.
-
Page 2: Wallplate Installation
Installation Guide Wallplate installation 1. Separate wallplate from thermostat. Grasp top and bottom of wallplate and pull to remove from thermostat. 2. Install the wallplate as shown below. Drill 3/16” holes for drywall. Drill 7/32” holes for plaster. Mounting Wire hole screws Wall anchors M32487 Power options 24 VAC 3.0 VDC USED M32488 M28101 For 24VAC primary power, connect common side of transformer to “C” terminal. Install two AA alkaline batteries on the back of the thermostat as marked 69-2565—05... - Page 3 53DFS250-HW Wiring Push excess wire back into wall opening. Leave the metal jumper wire between RC and R. Plug wall opening with non-flammable insulation. SCREW INSERT WIRES THEN TIGHTEN SCREWS WIRE HOLE USED M32489A Terminal Designations: 24 Volt power Not used [1] 24 Volt common 2nd stage heat (electric heat) Compressor Low speed fan High speed fan Reversing valve for heat pumps Remote sensor or remote setback [2] Remote sensor or remote setback [2] Notes Leave the metal jumper wire in place between Rc and R. [2] Sensor wire must have a cable separate from the thermostat control cable. 69-2565—05...
-
Page 4: Installation Guide
Installation Guide Wiring Heat Pump with Electric Heat wiring. FACTORY INSTALLED JUMPER. JUMPER WIRE (O TO Y1) REQUIRED USED WHEN HEAT PUMP INDOOR IS USED WITH COOLING ONLY OUTDOOR UNIT. WIRE IS FIELD SUPPLIED. INDOOR TEMPERATURE SENSOR/REMOTE SETBACK/CHANGEOVER PIPE SENSOR UNIT TERMINAL BLOCK H2 H1 W2 C O R Y Y1 G1 G2 M32490A Cool only wiring. -
Page 5: Sensor Wiring For Temperature Averaging
53DFS250-HW Sensor wiring for temperature averaging Wiring four TR21 (20K ohm) Sensors. Wiring two TR21 (20K ohm) Sensors and one TR21-A (10K ohm) Sensor to provide a SUBBASE temperature averaging network SUBBASE TR21 TR21 TR21 TR21 TR21 TR21-A TR21 M27481 THE TR21-A IS A 10K OHM SENSOR. M27483 Wiring two TR21-A (10K ohm) Sensors to Wiring four C7189U (10K ohm) Sensors to provide a temperature averaging network. provide a temperature averaging network. SUBBASE SUBBASE C7189 C7189 C7189 C7189 TR21-A TR21-A THE TR21-A IS A 10K OHM SENSOR. -
Page 6: Set Date And Time
Installation Guide Remove tab and mount thermostat Remove tab. WALL M28102 Align pins on back of thermostat with slots in wallplate, then push gently M23024 until thermostat snaps into place. Set date and time Month Year Date Press GO BACK and NEXT to select the Month, Year, Date, or Time function. Next Press st to Go Back Done Done change the Month, Year, Date, or Time setting. M32496 Press DONE to save changes. - Page 7 53DFS250-HW Installer setup Setup Number Setup Name Settings & Options (factory default in bold) Date (Year Upper) 0120 20 (2011-2078) 21 (2101-2178) Date (Year Lower) 0130 08 (2008) [Other options: 00-99] Date (Month) 0140 6 [Other options: 1-12] Date (Day) 0150 15 [Other options: 1-31] Schedule Options 0160 Programmable 0 Non-programmable System Selection 0170...
- Page 8 Installation Guide Installer setup Setup Number Setup Name Settings & Options (factory default in bold) Unoccupied Cooling 0346 80 80°F (27°C) Setpoint (only when remote °F (24–32°C) [Options: 75–90 setback is enabled) Fan Ramping 0347 1 ON 0 OFF (Lo, Med, Hi) Fan Mode 0348 0 User can choose Cycle or Constant 3 speed: Low, Med, High, Auto 1 Cycle Only - Auto only Auto Fan Reset 0349 0 OFF 1 Reset back to Auto after 2 hours 2 Reset back to Auto after 4 hours 0535...
-
Page 9: Installer System Test
53DFS250-HW Installer setup Setup Number Setup Name Settings & Options (factory default in bold) Recovery Cool Ramp Rate 0695 3 3°F (1.7°C)/hour [Options: 0–20°F (0–11°C)] Temperature Display Offset 0700 0 0°F (0.0°C) [Options: -3–3°F (-1.5–3°C)] Restore Factory Defaults 0710 Screen Display 0720 2 Display Both 0 Display Room Temperature 1 Display Setpoint Installer system test Test System During installer setup, press NEXT... -
Page 10: Special Functions
Installation Guide Special functions Fan Sequence Operations (Setup Function 0347, 0348, 0349): The thermostat comes factory default with the fan ramping algorithm enabled (ISU 347). This gives the user the ability to select Auto-Lo- Med-Hi option in ISU 348 or Auto only option in ISU 348. Auto sets the thermostat into the fan ramping algorithm mode and automatically sets the sufficient speed for PI control. Auto also automatically shuts the fan off when there is not a call for heating or cooling. If the user decides to disable ISU 347, then the fan will only have Lo-Med-Hi option available. If ISU 347 is not enabled, then ISU 348 does not appear as a user selection choice. If ISU 347 is enabled, then ISU 349 is available as a selection choice. The user can select either a 2 hour or 4 hour timer fan reset function. The fan will reset from a constant speed to auto mode after the time period expires. If ISU 347 is not enabled, then ISU 349 does not appear as a user selection choice. Auto Changeover (Setup Function 0300): When set to Auto, the thermostat automatically selects heat- ing or cooling depending on the indoor temperature. Compressor Protection (Setup Function 0580): Forces the compressor to wait a few minutes before restarting, to prevent damage. During this time, the message “Wait” flashes on the display. Special Programmable Mode Functions Installer Setup 0160 allows the thermostat to be configured for either a mode with a programmable 7 day schedule or as a non-programmable thermostat. Preoccupancy purge (ISU 0185): This feature is available only when the thermostat is configured as a programmable schedule and when a fan is used. The fan will run 1-3 hours before the occupied schedule starting time to circulate air. Override Button, Temporary Override (Duration Limit ISU 0535): While in the programmable sched- ule mode, an override button is available to perform temporary override control. The default override time can be configured through ISU 0535. Lockout configuration via ISU 0670 can provide restrictions on access to setpoint changes, system changes, and schedule changes. No remote setback: The remote setback feature only works in the nonprogrammable mode. -
Page 11: Troubleshooting
53DFS250-HW Troubleshooting Symptom Possible Cause Action Display does not come Thermostat is not being Check for 24 Vac between C and R. Check that AA powered. batteries are installed correctly and are good. Temperature settings The upper or lower temperature Check temperature setpoints. Check Installer Setup do not change. limits were reached. Numbers 0600 and 0610; modify as needed. The keypad is fully locked. Check Installer Setup Number 0670 to change keypad locked options. Heating or cooling Thermostat minimum off-time is Wait up to five minutes for the system to respond. does not come on. activated. System selection not set to Heat Set system Selection to correct position. or Cool. System type Selection is Check Installer Setup Number 0170 and make sure incorrect. correct System type is chosen. Heat does not turn on Heating equipment failure. Check for 24 Vac at the equipment on the secondary (Heat On is solid in the side of the transformer between power and display). common. If voltage is not present, check the heating equipment to find the cause of the problem. -
Page 12: Accessories And Replacement Parts
Installation Guide Accessories & replacement parts Please contact your distributor to order replacement parts. Indoor Sensor ............Part Number P350-ISEN-CM20 Indoor Sensor ............Part Number P350-ISEN-CM10 Duct Probe .............. Part Number P350-PRB01 Indoor Sensor ............Part Number P350-ISEN-R340 Coverplate* ............. Part Number P350-CP-MULTI *(Use to cover marks left by old thermostats.) Specifications Temperature Ranges Electrical Ratings • Heat: 40° to 90°F (4.5° to 32°C) Terminal Voltage (50/60Hz) Running Current • Cool: 50° to 99°F (10° to 37°C) H2 Heating 20-30 Vac 0.02-1.0 A Operating Ambient Temperature...