Honeywell T7351 Скачать руководство пользователя страница 2

T7351 COMMERCIAL PROGRAMMABLE THERMOSTAT

63-2666—02

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the 

TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or 

phone:

1.

Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).

2.

Honeywell Customer Care

1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V 4Z9.

International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, 

Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

SPECIFICATIONS

IMPORTANT

The specifications given in this publication do not 

include normal manufacturing tolerances. Therefore, 

this unit might not exactly match listed specifications. 

This product is tested and calibrated under closely 

controlled conditions; minor performance differences 

can be expected if those conditions are changed.

Models: 

See Table 1.

Dimensions: 

Refer to Fig. 1.

Finish (color): 

Trident White.

Batteries: 

No batteries required 

Table 1. T7351 Thermostat Features

a

 This model is down-selectable and can be configured to control fewer stages than the maximum allowed.

b

 Heat pump applications for this model have a maximum of two heat stages and two cool stages.

Mounting Means:

Mounts on subbase.

Subbase Mounts On:

Wall: Using two 5/8 in. long #6-32 screws (included).

Outlet Box: Using sheet metal screws.

Clock Accuracy at 77° F (25° C): 

±1 min./month (30 days).

Minimum Stage Operation Time (fixed):

Minimum On

Heat: 1 minutes.

Cool: 3 minutes.

Minimum Off (Cool and Heat Pump): 1 minute.

Electrical Ratings:

Power: 24 Vac, 50/60 Hz.; 20 to 30 Vac, 50/60 Hz.

Input:

Temperature: 20K ohms.

Humidity: 0-10 Vdc.

Outdoor: 3000 PTC.

Discharge Air: 20K ohms.

Occupancy Sensor: Dry contact switching 30 Vdc at 1 mA.

All Relay Outputs (at 30 Vac):

Running: 1.5A maximum.

Inrush: 7.5A maximum.

System Current Draw (without load):

5 VA maximum at 30 Vac, 50/60 Hz.

NOTE: Relays are N.O. Single-Pole, Single-Throw (SPST).

Outdoor Sensor Wiring: 

Requires 18 gauge wire.

Humidity Ratings: 

5% to 90% RH, noncondensing.

Emergency Heat Indication:

Display indicates when Emergency Heat is activated (Em).

Temperature:

Ratings:

Operating Ambient: 30° to 110° F (-1° to 43° C).

Shipping: -30° to +150° F (-34° to +66° C).

Display Accuracy: ±1° F (±1° C).

Setpoint:

Range:

Heating: 40° to 90° F (4° to 32° C).

Cooling: 45° to 99° F (7° to 37° C).

Deadband: 2° F (1° C).

Default Settings: Refer to Table 2.

Loss of Power: 

The thermostat maintains programmed times 

and temperatures for the life of the product. Clock and day 

information is retained for a minimum of 48 hours.

NOTE: To achieve the 48-hour power-loss clock retention, 

the T7351 must be powered for at least 5 minutes.

Approvals:

European Community Mark (CE) Listed.

UL 873 Recognized, NEC Class 2.

FCC Part 15 subpart J Class A.

cUL.

Model

Application

Maximum Stages

a

Features

Auxiliary 

Relay

Heat

Cool

T7351F

Conventional or

Heat Pump

3 (2)

b

3 (4)

b

Humidity, Occupancy, 

Outdoor, Discharge Air Capability

Yes

Содержание T7351

Страница 1: ...lled water systems 365 day programming Two Occupied and two Not Occupied periods per day Individual heat and cool setpoints available for Occupied and Not Occupied periods P I D control minimizes temperature fluctuations Recovery ramp control automatically optimizes equipment start times based on building load Convenient overrides allow temporary setpoint changes Keypad multi level lockout availab...

Страница 2: ...ximum of two heat stages and two cool stages Mounting Means Mounts on subbase Subbase Mounts On Wall Using two 5 8 in long 6 32 screws included Outlet Box Using sheet metal screws Clock Accuracy at 77 F 25 C 1 min month 30 days Minimum Stage Operation Time fixed Minimum On Heat 1 minutes Cool 3 minutes Minimum Off Cool and Heat Pump 1 minute Electrical Ratings Power 24 Vac 50 60 Hz 20 to 30 Vac 50...

Страница 3: ...y Disconnect power supply before installation IMPORTANT All wiring must agree with applicable codes ordinances and regulations MERCURY NOTICE If this control is replacing a control that contains mercury in a sealed tube do not place your old control in the trash Dispose of properly Contact your local waste management authority for instructions regarding recycling and the proper disposal of an old ...

Страница 4: ...s thermostat mounting orientation does not matter Wall mounting using standard drywall screws is standard Mounting to a 2 in 50 8 mm by 4 in 101 6 mm wiring box can be accomplished for a horizontal box no extra hardware is required for a vertical box part 209651A is required Mount to European standard wall box 2 4 in having 61 mm between mounting screws in a horizontal line with or without adaptiv...

Страница 5: ...OLES MOUNTING SCREWS Table 3 T7351 Subbase for Three stage Heat Three stage Cool Systems Terminal Description Conventional Heat Pump RCa RCa 24 VAC Cooling transformer RHa RHa 24 VAC Heating transformer X X Common aux aux Auxiliary relay W1 O B Conventional Stage 1 heating relay Heat Pump Changeover relay for heating B or cooling O b W2 W1 Conventional Stage 2 heating relay Heat Pump 1st Stage aux...

Страница 6: ...ature Refer to Table 2 for the default temperature setpoints See Programming section for complete instructions on changing the setpoints Setting System and Fan System default setting is Auto Fan default setting is On NOTE Use System and Fan keys to change settings System Settings Auto Thermostat automatically changes between heating and cooling based on indoor temperature Cool Thermostat controls ...

Страница 7: ...T7351 firmware version number 3 To return to a Setup item cycle through the options 4 To change a setting use the up or down key 5 To exit the Installer Setup press Run Schedule 6 Display prompts SAV CFG save configuration Table 4 T7351 Intelligent Fan ON control logic Occupancy Call for Heat Cool Notes Scheduled Period Motion Sensor Signal Effective Occupancy Yes No Occupied No Sensor Wired Occup...

Страница 8: ...Heat Pump Heating Energize O B on call for heat COOLSTG 1 0 4 Number of Cooling Stages 0 0 Stages of Cooling 1 1 Stages of Cooling 2 2 Stages of Cooling 3 3 Stages of Cooling Not available if Heat Pump is selected 4 4 Stages of Cooling W3 will be used as 4th stage relay Not available if Heat Pump is selected HEATSTG 1 0 3 Number of Conventional Heating Stages Not available if Heat Pump is selected...

Страница 9: ... Deg F 1 1 Deg F 2 2 Deg F 3 3 Deg F 4 4 Deg F 5 5 Deg F TMP OCC 3 1 8 Temporary Occupied Duration 1 to 8 hours TMP CAL 0 4 3 Temporary Display Adjustment 0 3 0 to 3 DDF 4 7 4 to 1 DDF MINCOOL 45 F 7 C 45 99 F 7 37 C Min Cool Setpoint MAXHEAT 90 F 32 C 40 90 F 4 32 C Max Heat Setpoint HEATLCK NO YES or NO Heating Lockout Only displayed if Outdoor Air Sensor is selected NO None YES Enabled HTLCKSP ...

Страница 10: ...t 5 Reheat w Min On DEH MIN 5 5 15 Dehumidify Minutes On DEH TMP 2 1 5 Dehumidify Temp Reset MINHTRT 5 0 20 DDF HR Minimum Heat Recovery Ramp Rate MAXHTRT 8 0 20 DDF HR Maximum Heat Recovery Ramp Rate Only Displayed if Outdoor Sensor is Selected MINHTOA 0 F 18 C 20 120 F 29 49 C Minimum Heat Outdoor Air Temperature Only Displayed if Outdoor Sensor is Selected MAXHTOA 40 F 4 C 20 120 F 29 49 C Maxi...

Страница 11: ...es hold key down to continuously decrease value Also can make temporary change in temperature setpoint Information Obtains information where humidity high limit can be set cycles through setup options Up Arrow Raises setpoint day or time When setting times or temperatures hold key down to continuously increase value Also can make temporary change in temperature setpoint Temperature Occupied Heat S...

Страница 12: ... if the compressor is cycled too quickly Use the Test Mode to check the thermostat configurations and operation To start the system test 1 Press Schedule Day Occupied and Not Occupied simultaneously 2 The display gives the option to TEST a To enter test mode press up or down until the display indicates IN TEST b To cancel this option ensure display indicates NO TEST 3 Press Run Schedule NOTES To v...

Страница 13: ...ature and excessive overdriving of modulating outputs All adjustments to Loop Tuning parameters should be gradual After each change allow the system to stabilize to accurately observe the effects of the change Then as needed make further refinements until the system operates as desired If adjustment of PID parameters is required use the following NOTE In the items that follow the term error refers...

Страница 14: ...he heat mode in Fig 10 except the slope of the line reverses for cooling Fig 12 Setpoint Ramping Parameters with Ramp Rate Calculation Advantages Comfort setting is achieved at the programmed time and maintained regardless of weather conditions occupants are comfortable Drafts from low temperature discharge air are minimized during Occupied periods Use of the more economical first stage of heat is...

Страница 15: ...he auxiliary relay are hot water heaters lighting or baseboard heat The additional loads are connected to the auxiliary relay contacts on the subbase The contacts are rated for 1 5A at 30 Vac but can be adapted to higher current applications using an external relay See Fig 13 Fig 13 Using T7351 Models with an External Relay with loads greater than 1 5A Default Auxiliary Relay Operations Unless con...

Страница 16: ...is normal NOTES The heat stage never energizes during Reheat if more than one cool stage is on Reheat mode cannot occur during heating RESET TEMP SETPT The room temperature set point resets to a specified number of degrees below the actual set point when room relative humidity RH rises above humidity high limit The default value is 2 degrees Though this may not technically reduce RH it reduces the...

Страница 17: ... blown if so replace fuse Check if the HVAC equipment power switch is in the Off position if so set to the On position Check wiring between thermostat and HVAC equipment Replace broken wires and tighten loose connections If 24 Vac is present proceed with troubleshooting Temperature display is incorrect Thermostat is configured for F or C display Press both Run Schedule and Copy then reconfigure th...

Страница 18: ...ipped if so reset circuit breaker Check if system fuse is blown if so replace fuse Check if the HVAC equipment power switch is in the Off position if so set to the On position Check wiring between thermostat and HVAC equipment Replace broken wires and tighten loose connections If 24 Vac is present proceed with troubleshooting Thermostat minimum off time is activated Wait up to five minutes for the...

Страница 19: ...S OS AS AS M HC HP HS 1 L1 HOT L2 COMPRESSOR CONTACTOR 1 COMPRESSOR CONTACTOR 2 HEAT RELAY 1 FAN RELAY HEAT RELAY 2 COMPRESSOR CONTACTOR 3 HEAT RELAY 3 TR23 H REMOTE SENSOR 9 8 7 6 5 4 3 2 1 10 11 12 GND SENSOR SET PT LED BYPASS 5 5 4 ECONOMIZER POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED ENSURE TRANSFORMER IS SIZED TO HANDLE THE LOAD HEAT COOL SYSTEMS WITH ONE TRANSF...

Страница 20: ...D WHEN INSTALLED ON A SYSTEM WITH TWO TRANSFORMERS REMOVE THE FACTORY INSTALLED JUMPER USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS WHEN USING THE TR23 H FOR HUMIDITY SENSING THERE IS NO NEED TO WIRE THE HC TERMINAL BECAUSE THE T3 TERMINAL IS INTERNALLY TIED TO HC WHICH IS ALSO TIED TO TERMINAL 1 COMMON AT THE SENSOR 1 M29323 2 2 3 4 4 RC X SUBBASE O B G Y1 W1 W2 Y2 AUX RH T5 T6 T7 T4 T...

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