Honeywell HH07AT216 User manual

HH07AT216, HH07AT217
Heating/Cooling
Thermostats
Installation
WHEN INSTALLING THIS PRODUCT…
1. Read these instructions carefully. Failure to fol-
low them could damage the product or cause a hazard-
ous condition.
2. Check the ratings given in the Instructions and on
the product to make sure the product is suitable for your
application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these Instructions.
CAUTION
Disconnect power supply before beginning in-
stallation to prevent electrical shock or equip-
ment damage.
LOCATION
Locate the thermostat about 5 ft (1.5m) above the
floor on an inside wall in an area with good air circula-
tion at average temperature.
Do not mount the thermostat where it can be affected
by:—drafts or dead spots behind doors or in corners.
—hot or cold air from ducts.
—radiant heat from the sun, fireplaces or appliances.
—unheated (uncooled) areas such as outside walls
behind the thermostats.
This thermostat is a precision instrument and was
carefully adjusted at the factory. Handle it carefully.
MOUNTING AND WIRING
Disconnect power supply before beginning installa-
tion to prevent electrical shock or equipment damage.
All wiring must comply with local codes and ordi-
nances.
The thermostat can be mounted directly on a wall or
horizontal outlet box.
To wire and mount thermostat:
1. In replacement applications, check the existing
thermostat wires for cracked or frayed insulation. Re-
place any wires in poor condition. If the wire is plastered
into the wall, make a hole next to the wires and loosen
the wires so that they can be pushed back into the wall
later.
MOUNTING HOLE
(THERMOSTAT 
TO WALL OR 
OUTLET BOX)
BIMETAL ELEMENT
BEHIND HEAT
ANTICIPATOR 
SCALE SYSTEM
SWITCH MOUNTING 
HOLE
TEMPERATURE
SETTING LEVER
FAN 
SWITCH
M5601
ADJUSTABLE HEAT
ANTICIPATOR INDICATOR
.25
.3 .35
.5
.7
.9
.2.18
L
O
N
G
M3375
Application
These Thermostats provide 24 to 30 Vac control in
single-stage heating-cooling systems. An spdt mercury
switchmakesRtoWontemperaturefallforheating,and
R to Y on temperature rise for cooling. Integral switches
control COOL-OFF-HEAT system operation and ON-
AUTO fan operation. Heat anticipation is adjustable,
0.18A to 1.0A. See Fig. 1.
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 control. If you have questions, call Honeywell
Customer Relations at 1-800-468-1502.
Fig. 1—Internal view of the thermostat.
G. H. • 10-01 • • ©Honeywell 2001 • Form Number 69-1585
M3375

269-1585
2. In new installations, run wiring (if necessary) to
the thermostat location.
3. Connect the wires to the terminals on the back of the
thermostat. For internal schematic diagram, see Fig. 2.
Fig. 2—Thermostat internal schematic
Setting andAdjustment
TEMPERATURE SETTING
Push the temperature setting lever to the desired
control point on the temperature scale. The same lever
controls the temperature setting for either heating or
cooling.
SYSTEM AND FAN SWITCHING
ThisthermostatfeaturesSYSTEMandFANswitches
for control of the heating-cooling and fan systems.
The SYSTEM switch controls system operation as fol-
lows:
COOL: Cooling system only operates.
HEAT: Heating system only operates.
OFF: Both heating and cooling systems are discon-
nected.
The FAN switch controls fan operation as follows:
AUTO: With terminals 1 and 4 jumpered, fan oper-
ates in response to the thermostat in cooling; fan
operates in response to the plenum fan control in
heating. With terminals 1 and 2 jumpered, fan
operates in response to the thermostat in heating
and cooling. Jumper is included with thermostat.
ON: The fan runs continuously.
To switch positions, use thumb and index finger to
slide lever to desired position. Switch lever must stop
directly over desired function indicator mark for proper
circuit operation.
HEAT ANTICIPATOR SETTING
IMPORTANT:Thisthermostat has an adjustable heat
anticipator and will operate properly ONLY IF
THE ANTICIPATOR IS ADJUSTED TO MATCH
THECURRENTDRAW OFTHEPRIMARYCON-
TROL. Use this thermostat only on systems with
current draws that fall within the range of the heat
anticipator. Do not use this device on millivolt
systems.
A current rating is usually stamped in the nameplate
of the primary control. Set the adjustable heat anticipa-
tor indicator to match the value given on the nameplate.
If current rating is not available, proceed as follows
to determine the rating:
1. Turn off power.
2. Wire thermostat, but do not mount it on the wall.
3. ConnectammeterbetweenWwireandWterminal
on the thermostat (in series with the primary control).
4. Prepare the system for operation.
5. Turn on power.
6. Turn system switch to heat.
7. Increase thermostat setpoint as necessary to get
system operating.
8. With the system operating through the ammeter,
wait one minute, then read the ammeter.
9. TurnthesystemswitchtoOFF,and turn off power.
10. Adjust the heat anticipator to match the reading on
the ammeter.
11. Disconnect the ammeter, reconnect the W wire,
and mount the thermostat. Continue with system check-
out.
M8917
2
B
ON
AUTO
FAN G
O
W
R
Y
OFF
COOL
HEAT
OFF
COOL
HEAT
1
FIELD WIRING CONNECTION
4.7 K COOL
ANTICIPATOR
COOL
HEAT
.18 - 1.0
HEAT 
ANTICIPATOR
JUMPER 1 TO Y WITH INCLUDED JUMPER FOR AUTOMATIC 
FAN IN COOLING MODE ONLY.

JUMPER 1 TO 2 WITH INCLUDED JUMPER FOR AUTOMATIC 
FAN IN HEATING AND COOLING MODE.

NOTE: IF JUMPER IS NOT MADE TO EITHER Y OR 2, THEN NO 
 AUTOMATIC FAN WILL OCCUR IN EITHER HEATING OR 
COOLING MODE. (G IS NOT AFFECTED BY THIS.)
2
1
2
1
4. Remove thermostat cover by pulling outward on
right edge of cover until it snaps free of the thermostat
base. Carefully remove and discard the foam plastic
shipping insert that protects the switch and bimetal
assembly during shipping.
5. Set the adjustable heat anticipator indicator to
match the current draw of the primary heating control
(see Heat Anticipator Setting).
6. Push excess wire back through the hole and plug
any opening with insulation to prevent drafts that may
affect thermostat performance.
7. Loosely fasten the thermostat (with wallplate, if
applicable)tothewalloroutletboxwithascrewthrough
the left mounting hole. Adjust the thermostat so that it is
approximatelylevel and fasten the second screw through
the right mounting hole. Do not tighten.
8. For optimum performance, level the thermostat
using a spirit level or plumb line. Tighten the mounting
screws.
9. Replace the thermostat cover.
IMPORTANT: An incorrectly leveled thermostat will
cause the temperature control to deviate from
setpoint.

369-1585
The heat anticipator can require further adjustment
for best performance. To lengthen burner-on time, move
the indicator in the direction of the longer arrows—not
more than one-half scale marking at a time. To shorten
burner-on time, move indicator in opposite direction.
Most one-stage heating equipment is designed to
operate at five to six cycles per hour, at 50 percent load
conditions. When using this thermostat in heat pump
systems, set the heat anticipator at 140 percent of the
actual primary control current draw to reduce the cy-
cling rate. Most heat pump systems should cycle 2-1/2 to
3 times per hour. Checkout
CAUTION
Do not check operation by shorting across ter-
minals of system controls. This will damage
the heat anticipator.
IMPORTANT: To assure accurate temperature con-
trol, do not touch or breathe on bimetal or ther-
mometer.
HEATING
With system switch set at HEAT and fan switch at
AUTO, move the temperature setting lever about 10°F
(6°C) above room temperature. In standard systems,
heating should start; fan should start after a short delay.
In heat pump or electric heat systems, both heating and
fan should start.
Move temperature setting lever about 10°F (6°C) be-
low room temperature. In standard systems, heating
should shut off and fan should shut off after a short
delay. In heat pump or electric heat systems, both heat-
ing and fan should shut off.
COOLING
CAUTION
Do not operate cooling if outdoor temperature
is below 50°F (10°C). Refer to manufacturer
recommendations.
NOTE:Topreventcompressor shortcycling, somemanu-
facturer equipment includes a minimum off-timer to
provide a five-minute time delay before activating
the compressor when the thermostat last turned the
compressor off, or from when the system first re-
ceived power. This delay protects the compressor.
With the system switch set at COOL and fan switch at
AUTO, move the temperature setting lever about 10°F
(6°C) below room temperature. Cooling and fan should
start (see NOTE above). Move the temperature setting
lever about 10°F (6°C) above room temperature. Cool-
ing and fan should shut off.
FAN
With the system switch set at OFF, and the fan switch
at ON, the fan should run continuously. Move the fan
switch to AUTO. In standard systems, fan operation is
controlled by the plenum fan control in heating and by
the thermostat in cooling. In heat pump or electric heat
systems, fan operation is controlled by the thermostat in
heating and cooling.
RECALIBRATION
These thermostats are calibrated at the factory and
should not need recalibration. If the thermostat seems
out of adjustment, first check for accurate leveling.
To check calibration, proceed as follows:
1. Move the temperature setting lever to the lower
end of the temperature scale. System switch must be
placed OFF. Wait at least five minutes.
2. Remove the thermostat cover. Move the setting
lever until the switch just makes contact. The mercury in
the switch will roll to the left end of the tube.
3. Replace cover and wait five minutes for the cover
and the thermostat to lose the heat it has gained from
your hands. If the thermometer pointer and the setting
lever indicator read approximately the same, no
recalibration is needed.
If recalibration appears necessary, proceed as fol-
lows:
1. Place the temperature setting lever at the same
setting as the thermometer. Remove cover by pulling
outward on right edge of cover until it snaps free of the
thermostat base.
2. Insert Honeywell 104994A Calibration Wrench
(ordered separately) onto the hex nut under the coil. See
Fig. 3. Holding the setting lever so it does not move, turn
the wrench clockwise until the mercury rolls to
the right end of the tube. Remove wrench and replace
cover.
To assure accurate temperature control, do not touch
or breathe on bimetal or thermometer.
3. Move the setting lever to a low setting. Wait at
least five minutes for temperature to stabilize.
4. Slowly move the setting lever until it reads the
same as the thermometer.
5. Remove cover. Holding the setting lever so it does
not move, reinsert wrench and carefully turn counter-
clockwise until the mercury rolls to the left end
of the tube but no farther.
6. Recheck calibration. Set the thermostat system
switch for desired operation and replace cover.
Fig. 3—Recalibration procedure.
CALIBRATION
WRENCH
COIL SHOWN WITHOUT
HEAT ANTICIPATOR
M2044

Form: IM-STAT-21 Cancels: Printed in U.S.A. Catalog No. 63TS-TA11
©2001 CAC/BDP P.O. Box 70, Indianapolis, IN 46206