Honeywell T6380 User Manual

T6380 Series

Electronic Fan Coil Thermostats

APPLICATION

The T6380 series of electronic fan coil thermostats provide precision line voltage control of fan-forced Heating, Ventilat­ ing and Air Conditioning equipment. Models are available for cooling-only, manual heat-cool changeover, or remote heat­ cool changeover systems. Hydronic source heat-cool systems may be two or four-pipe configuration with 0, 1, or 2 valves. Fan control options include constant, cycled, or user­ selectable "On-Auto" operation. Manual fan speed selection is standard. All models feature an “Off” switch.

PRODUCT DATA

FEATURES

•Electronic temperature sensing provides energy­ efficient, precision operation for maximum comfort.

•Contemporary white sculpted styling.

•Vertical or horizontal mounting configurations.

•Adjustment ranges 55° to 90°F or 13° to 32°C.

•Easy-to-use set point knob.

•LED system status indicator. "OFF" de-energizes all connected loads.

•Three level fan speed selection.

•Constant, cycled, or on-auto selectable fan operation available.

•Models for manual or remote heat-cool changeover, heating-only, or cooling-only systems.

•Models for 2 or 4-pipe systems.

•Rugged molded thermoplastic housing with captive mounting screws, mounts on single-gang NEMA­ standard (U.S.) electrical box.

•Screw terminal block connections.

•Suitable for inductive-rated loads such as valves, relays, contactors and fans.

•Range stops and cover locking kit available.

•UL Listed. CSA Certified.

	Contents
Specifications ..................................................................	2
Ordering Information .......................................................	2
Installation .......................................................................	3
Wiring ..............................................................................	3
Operations ....................................................................	5
Check-out .....................................................................	5

M.O'D. 8/98 © Honeywell Ltd.—Honeywell Ltée. 1998 Printed in Canada Form Number 95C-10758

T6380 - SPECIFICATIONS, ORDERING INFORMATION

SPECIFICATIONS

MODELS:			3-Speed Fan Operation
Fan Coil System			Constant	Cycled	On-Auto
2-pipe System
•	Cooling only		T6383A	T6381A	T6387A
			Fig. 2a	Fig. 5a	Fig. 8a
•	Heating only		T6383A	T6381A	T6387A
			Fig. 2b	Fig. 5b	Fig. 8a
2-pipe Heat-Cool
• Manual Change/Over			T6383B	T6381B	N/A
			Fig. 3	Fig. 6
• Seasonal, auto C/O			T6383A	T6381A	T6387A
			Fig. 2c	Fig. 5c	Fig. 8c
• Seasonal, auto C/O			T6383B	T6381B	N/A
	with aux. electric heat		Fig. 4b	Fig. 7b
4-pipe Heat-Cool			T6383B	T6381B
• Manual C/O					N/A
			Fig. 4a	Fig. 7a

Electrical Ratings:

T6380 Series - Power Supply: 110-130 or 208-277 Vac +10/-15%, 50-60 Hz.

T6381, T6387 - Output Rating, cycled (“Auto”) fan control

50-60 Hz	120 V	208 V	230 V	277 V
Full Load Amps*	3.8	2.1	1.9	1.6
Locked Rotor	22.8	12.6	11.4	9.5
Pilot Duty		125 VA

*Equivalent to NEMA 1/8 horsepower rating for a hermetically-sealed motor such as a compressor. Allowable connected load must be determined by adding nameplate full load and locked rotor (inrush) ratings of all loads.

T6383 – Output Rating, constant fan operation

Thermostat (Heat and Cool outputs):

50-60 Hz	120 V	208 V	230 V	277 V
Full Load Amps	3.8	2.1	1.9	1.6
Locked Rotor A	22.8	12.6	11.4	9.5
Pilot Duty		125 VA
Resistive (heat only)	10.0 A	N/A	N/A	5.6

Fan (Air Handler):

50-60 Hz	110-130V	208 V	220-240V	277 V
Full Load Amps**	5.8	3.2	2.9	2.4
Locked Rotor	34.8	19.2	17.4	14.4

**Equivalent to NEMA 1/4 horsepower rating for a hermetically-sealed motor. Allowable load must be determined from fan nameplate ratings .

†North American national electrical codes require all ungrounded conductors to electric resistance heating to be broken at the thermostat OFF setting. The 208V and 230V resistive ratings are not UL approved. The 230V rating is site-approveable in Canada on 416V 4-wire Wye distributed systems. The non-inductive rating for 230V “a.c. mains” with one ungrounded conductor is 6.0A.

ORDERING INFORMATION

Operating range:

32 to + 104 F [0 to +40 C], 5 to 95% RH, non-condensing.

Performance Specifications:

Precision: ±1°F temperature swing [0.9°C differential]. Accuracy: 2°F [1°C] droop with 4 A load.

Dimensions:

See Fig. 1 - Nominal Dimensions.

Mounting:

Direct mounting on single-gang NEMA 2" x 3" flush-mount or 2" x 4" surface-mount electrical box, or on 4" x 4" box Models available for vertical or horizontal mount.

Wiring Connections:

Screw terminal block suitable for 1 – 14 AWG, 2 – 18 AWG, or 1 – 1.5 mm2 copper wire.

Approvals:

CSA Certified LR1322

Underwriters Laboratories Listed E47434.

Accessories:

272824A-T6380 Range stop/cover locking kit.

272827A-T6380 replacement cover with Cool-Warmer

Fig. 1 — Nominal dimensions in inches and millimetres

Before ordering please determine the following:

1.The body type: 2-way or 3-way

2.The actuator voltage : 24V/50-60Hz

3.The pipe fitting, size, and flow capacity rating (Cv) required.

4.Order Specification Number

5.Accessories, if desired.

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 Home and Building Control Sales Office (please check the white pages of your phone directory).

2.Honeywell Limited, 155 Gordon Baker Rd., North York, ON M2H 3N7.

In U.S.A. - Honeywell Inc., 1885 Douglas Drive North, Minneapolis, Minnesota 55422-4386 [phone]. 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.

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