background image

2

W884B,E

SPECIFICATIONS • ORDERING INFORMATION

positive ON and OFF for manual operation.

Specifications

IMPORTANT: The specifications given in this publi-

cation do not include normal manufacturing toler-
ances. Therefore, this unit may not match exactly
the listed specifications. Also, this product is tested
and calibrated under closely controlled condi-
tions, and some minor differences in performance
can be expected if those conditions are changed.

MODELS:

W884B Comfort Control Center includes humidity

indicator, humidistat, switching subbase, and T87
Thermostat for controlling heating and cooling.

W884E Comfort Control Center includes humidity

indicator, dehumidistat, switching subbase, and
T87 Thermostat for controlling heating and cool-
ing. May be used with heat pump or electric heat
applications.

DIMENSIONS: See Fig. 1.
VOLTAGE RATING: 30 Vac maximum (except indica-

tor lights, which are rated for 25 Vac).

ACCESSORIES AND REPLACEMENT PARTS:

Part No. 133262A Cover Plate Assembly for mount-

ing W884 on outlet box.

Part No. 104994A Calibration Wrench.

HUMIDISTAT RATINGS:

Switching:

W884B: Spst (makes on relative humidity de-

crease).

W884E: Spst (makes on relative humidity increase).

Switch Rating: 50 VA at 24 Vac.
Range:

W884B: Optimum relative humidity is maintained

by setting for outdoor temperature.

W884E: The dial is marked ON, LOW, NOR-

MAL, HIGH, and OFF. Optimum relative hu-
midity is maintained by rotating the humidity
selection dial.

DIFFERENTIAL: 4 to 6 percent RH (cycling at midscale).
THERMOSTAT RATINGS:

Switching: Spdt.
Switch Rating: 1.5A at 30 Vac.
Range: 50

°

F to 100

°

F [10

°

C to 38

°

C].

Adjustable Heat Anticipator Range: 0.10 to 1.2A

(factory-set at 0.4A).

SUBBASE RATINGS:

System Switch: COOL-OFF-HEAT.
Fan Switch: AUTO-ON.
Switch Rating: 2A at 30 Vac; 1.5A at 30 Vdc.
Cooling Anticipator: 24 to 30 Vac.

Ordering Information

When purchasing replacement and moderniazation products from your TRADELINE® wholesaler or your distributor, refer to the
TRADELINE Catalog or price sheets for complete ordering number, or specify—

1.

Order number.

2. Thermostat and subbase models if required.
3. Accessories (see list).

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 Home and Building Control Sales Office (check white pages of phone directory).
2. Home and Building Control Customer Satisfaction

Honeywell Inc., 1885 Douglas Drive North-
Minneapolis, Minnesota 55422-4386 (612) 951-1000

In Canada—Honeywell Limited/Honeywell Limitée, 740 Ellesmere Road, Scarborough, Ontario M1P 2V9. 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.

Summary of Contents for W884B

Page 1: ... The W884E includes a dehumidifier control All comfort controls are combined in the W884 to make a convenient attractive control center CONTENTS Specifications 2 Ordering Information 2 Recycling Notice 3 Installation 4 Settings and Adjustments 7 Checkout 9 Humidistat dial on the W884B can be set for prevailing outdoor temperature to provide opti mum relative humidity over a wide range of con ditio...

Page 2: ... outdoor temperature W884E The dial is marked ON LOW NOR MAL HIGH and OFF Optimum relative hu midity is maintained by rotating the humidity selection dial DIFFERENTIAL 4 to 6 percent RH cycling at midscale THERMOSTAT RATINGS Switching Spdt Switch Rating 1 5A at 30 Vac Range 50 F to 100 F 10 C to 38 C Adjustable Heat Anticipator Range 0 10 to 1 2A factory set at 0 4A SUBBASE RATINGS System Switch C...

Page 3: ... at the end of its useful life If this control is replacing a control that contains mer cury in a sealed tube do not place your old control in the trash Contact your local waste management authority for instructions regarding recycling and the proper disposal of this control or of an old control containing mercury in a sealed tube If you have questions call Honeywell at 1 800 468 1502 M3375 ...

Page 4: ...ant heat from the sun or appliances concealed pipes and chimneys unheated uncooled areas such as an outside wall behind the thermostat MOUNTING IMPORTANT The thermostat used with the W884 was mounted at true level when calibrated at the fac tory The W884 must be level to maintain calibra tion 1 Remove cover and thermostat and level W884 at the selected location Mark locations for mounting screws a...

Page 5: ...ion Push excess wire back into wall and plug the hole to prevent drafts from affect ing the W884 7 Mount the thermostat and replace W884 cover WIRING Disconnect power supply to prevent electrical shock or equipment damage All wiring must comply with local codes and ordi nances Wiring to the W884 must be NEC Class 2 Humidistat requires separate 24V power supply Refer to the wiring diagrams and inst...

Page 6: ...AY W B G Y O H H Q539 DEHUMIDISTAT W884E 1 POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED USED IN DUCT HEATER OR SIMILAR APPLICATIONS TO ENERGIZE SYSTEM FAN DURING HEATING M1335 FAN RELAY 2 2 SPST N C SWITCHING RELAY R 1 HUMIDIFIER RELAY COOLING DAMPER MOTOR COOLING CONTACTOR FAN RELAY HEATING RELAY W B G Y O H H Q539A HUMIDISTAT W884B 1 POWER SUPPLY PROVIDE DISCONNECT M...

Page 7: ...et as recom mended and frost or condensation forms on inside windows adjust humidistat setting for outdoor tem per ature setting less 5 F 3 C Frost or condensa tion should disappear within 24 hours If not con tinue reducing outdoor temperature setting and ad just humidistat accordingly Humidity Selection W884B The humidity controller should be set at the prevail ing outdoor temperature This will p...

Page 8: ... rating of the primary control this rating is usually stamped on the control nameplate Move the indicator on the scale to correspond with this rating and the heat anticipator will be properly adjusted Move the indicator with your fin gers a pin a pencil point or a wire inserted in the small hole See Fig 11 If the current rating is not given proceed as follows before mounting the thermostat 1 Conne...

Page 9: ... system through one complete cycle to make sure all components function as intended CAUTION On low voltage gas system if jumpering gas valve to check system operation do NOT jumper across valve coil This may burn out thermostat heat anticipator See Fig 12 Fig 12 Do not jumper across valve coil ...

Page 10: ...ome and Building Control Helping You Control Your World Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 Printed in U S A QUALITY IS KEY ...

Reviews: