TCS HR150 User manual

PRODUCT DATA
68-0269
® U.S. Registered Trademark
Copyright © 2002 • All Rights Reserved
HR150, 200; ER150, 200
Fresh Air Ventilation Systems
APPLICATION
The HR150 and HR200 Fresh Air Ventilation Systems provide
proper levels of ventilation with energy savings by transferring
heat between the exhaust and fresh air streams.
The ER150 and ER200 Fresh Air Ventilation Systems provide
proper levels of ventilation with energy savings by transferring
heat and moisture between the exhaust and fresh air streams.
FEATURES
• Low voltage, high-speed override.
• Integral balancing dampers for quick installation.
• Provides ventilation that helps contractors meet
ASHRAE 62-89.
• 4-speed fan control.
• Automatic, economical built-in frost control for
operation to design temperatures of -40°F (-40°C).
• HR150 and HR200 models have an easy-to-clean
aluminum cross-flow core.
• ER150 and ER200 models have an advanced enthalpy
heat and moisture recovery fixed core.
• Includes vibration isolation hardware and duct collars.
• Insulated cabinet made of rugged steel.
• Permanent (washable) prefilters.
• Quiet operation.
• Digital fan timer option on all models.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Ordering Information ........................................................ 2
Planning the Installation ................................................... 4
Installation ........................................................................ 8
Wiring ............................................................................... 9
Startup and Checkout ....................................................... 11
Service ............................................................................. 11
Parts Lists.......................................................................... 15

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 2
ORDERING INFORMATION
When purchasing replacement and modernization products from your Total Comfort System wholesaler or distributor, refer to the
Total Comfort System 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:
Unitary Product Group Consumer Relations
5005 York Drive
Norman, OK 73069
Phone: [phone]
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
this unit might not exactly match the listed specifica-
tions. Also, this product is tested and calibrated
under closely controlled conditions, and some minor
differences in performance can be expected if those
conditions are changed.
Models Available:
HR150, HR200 Fresh Air Ventilation Systems: Includes
heat transfer core, prefilters, fan and blower assembly
and frost control.
HR150B: 150 cfm, aluminum core, manual control and
frost control.
HR200B: 200 cfm, aluminum cross flow core, manual con-
trol and frost control.
ER150B: 150 cfm, moisture transferring core, manual con-
trol and frost control.
ER200B: 200 cfm, moisture transferring core, manual con-
trol and frost control.
Color: White
Electrical Ratings:
Power Rating: 120 Vac, 60 Hz
Consumption:
Mounting:
Mounts in conditioned space such as a basement, utility room,
hallway or closet. Can also be mounted in a conditioned attic
space.
Approvals:
Home Ventilation Institute (HVI): Certified.
Canadian Standards Association: Approved.
ETL: Certified to UL1812.
Installed Weight:
HR150/HR200: 70 lb (32 kg).
ER150/ER200: 70 lb (32 kg).
HVI Certifier Ventilation Performance: See Fig. 1.
Dimensions: See Fig. 2 and 3.
Accessories:
See the HR Accessory Items Parts List that follows the
Troubleshooting Guide.
HR150, HR200
Maximum Temperature Recovery: 80%.
Sensible Efficiency (Performance per CAN/CSA-C439-88):
Low Speed at 32°F (0°C): 68%.
High Speed at 32°F (0°C): 62%.
Low Speed at -13°F (-25°C): 60%.
ER150, ER200
Sensible Efficiency (Performance per CAN/CSA-C439-88):
110 cfm at 61°F (16°C): 79%.
Moisture Transfer Ratio: 26%.
Mode
Nominal Current (Amps)
HR150/ER150 HR200/ER200
Minimum speed 0.7 0.8
Maximum speed 1.7 1.7

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
3 68-0269
Fig. 1. Ventilation Performance.
0
NET SUPPLY NET EXHAUST
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
50 150100 200 250 300 350 400
M6561
A
cfm (L/s = n x 0.4719)
in. wg (Pa = n x 248.8)
25
50
75
100
125
.1
.2
.3
.4
.5
91
89
84
78
69
193
188
178
165
147
EXT STATIC
PRESSURE
(Pa) (in. wg) (L/s) (cfm)
NET SUPPLY
AIR FLOW
HR150/ER150 VENTILATION PERFORMANCE
0
GROSS SUPPLY GROSS EXHAUST
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
50 150100 200 250 300 350 40
0
M6562A
cfm (L/s = n x 0.4719)
in. wg (Pa = n x 248.8)
.1
.2
.3
.4
.5
.6
.7
104
97
91
87
80
73
64
214
206
193
184
170
155
137
102
98
93
88
81
74
65
216
208
197
186
172
157
138
97
93
88
82
75
67
54
206
197
186
174
159
142
114
EXT STATIC
PRESSURE
(Pa) (in. wg) (L/s) (cfm) (L/s) (cfm) (L/s) (cfm)
NET SUPPLY
AIR FLOW GROSS AIR FLOW
SUPPLY EXHAUST
HR200/ER200 VENTILATION PERFORMANCE (HVI)
25
50
75
100
125
150
175

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 4
Fig. 2. HR150/ER150 and HR200/ER200 dimensions in in. (mm).
PLANNING THE INSTALLATION
Application
The Fresh Air Ventilation System is designed to supply fresh
air and exhaust stale air. The system draws fresh outdoor air
through the ventilator for distribution throughout the house.
Stale air is exhausted through the ventilator and to the
outdoors. Heat is transferred from one airstream to the other
as the air passes through the opposite sides of the heat
transfer core. See Fig. 4.
Fig. 3. Duct connections and airflow.
14-3/4 (375)
31 (787)
19
(483)
SERVICE
CLEARANCE
25
(635)
19
(483)
STALE AIR
FROM HOUSE
FRESH AIR
FROM OUTSIDE
DEFROST
PORT
FRESH AIR
TO HOUSE
HR
CONTROLS
ALL DUCT CONNECTIONS
ARE 6 (150).
STALE AIR
TO OUTSID
E
DRAIN SPOUTS
MOUNTING
STRAP (4)
M20846
WEIGHT: 70 lb (32 kg)
SHIPPING WEIGHT: 72 lb (33 kg)
Fresh Air Ventilation System
Système de ventilation à air frais
S
TALE
A
IR FROM
H
OUSE
DEFROST
PORT
FRESH
AIR TO
HOUSE
FRESH
AIR IN
STALE
AIR TO
OUTSID
E
M6553B

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
5 68-0269
Sizing
There are several methods that can provide satisfactory
results for sizing a ventilator to provide adequate ventilation
for a home. The ASHRAE Standard 62-1989 Ventilation for
Acceptable Indoor Air Quality suggests the following:
— .35 air changes per hour (ach) but not less than 15 cfm per
person for living areas = house size (sq ft) • ceiling height
(ft) / 60 (min) •.35 (ach)
Example:
= 2000 sq ft • 8 ft / 60 min •.35 ach = 93 cfm
— 50 cfm intermittent or 20 cfm continuous capacity for
bathrooms
Example:
50 cfm intermittent • 3 bathrooms = 150 cfm
20 cfm continuous • 3 bathrooms = 60 cfm
— 100 cfm intermittent or 25 cfm continuous capacity for
kitchens
Example:
100 cfm intermittent • 1 kitchen = 100 cfm
25 cfm continuous • 1 kitchen = 25 cfm
Option 1: Fresh Air Ventilation System provides continuous
fresh air supply of 93 cfm, and intermittent capacity for
bathrooms of 150 cfm. A separate 100 cfm exhaust fan is
used for the range hood.
Supply air flow required = 93 cfm
Exhaust air flow required = 150 cfm
Any Total Comfort System ventilation unit provides suitable
ventilation capacity. See Fig. 1.
Option 2: Fresh Air Ventilation System provides continuous
fresh air supply of 93 cfm, intermittent exhaust capacity for
bathrooms of 150 cfm, and continuous kitchen ventilation of
50 cfm.
Supply air flow required = 93 cfm
Exhaust air flow required = 200 cfm
Total Comfort System HR200/ER200 have the exhaust
capacity required to meet the ventilation needs of this
application. See Fig. 1.
Mounting Position and Location
The HR150/ER150 and HR200/ER200 can be suspended
from exposed ceiling joists or the ceiling surface, or floor
mounted. The ventilator must be level for the drains to
function properly.
• Locate the fresh air intake 6 ft (2m) or more from the stale
air exhaust to avoid re-entry of the exhaust air.
• Locate the ventilator where the length of ducting required is
minimal.
Install the HR150/ER150 and HR200/ER200 in a conditioned
space using these guidelines:
• Pipe the drain line from the ventilator to a drain.
• Use an existing electrical outlet with the appropriate
current rating (or install one) close to the ventilator power
cord.
• Allow space for the drain line by placing the ventilator at
least 10 in. (254 mm) off the floor.
• For access and removal of the ventilator core, allow at
least 25 in. (635 mm) of open space in front of the unit.
Ducting
Ducting between the ventilator and the outdoors must be
insulated and have a continuous air vapor barrier. See Fig. 5.
IMPORTANT
All ducting to the outdoors must be terminated above
anticipated snow lines and be fitted with a weather
cap that incorporates bird screening.
Fig. 4. Sealing insulated duct terminations.
Design and installation of ductwork must be in accordance
with standard HVAC practice to deliver required quantities of
fresh air to the temperature-controlled space and exhaust
equivalent quantities of room air to the outside.
Keep intake and exhaust duct runs as short as possible with
few bends or elbows.
• Keep duct sizes as large as possible throughout the
installation.
• Use a 6 in. diameter round duct for all connections to and
from the ventilator.
• Separate outside intake and exhaust vents by at least 6 ft
(2m).
NOTES:
— Do not locate the fresh air vent where it blows
directly onto occupants or the thermostat.
— Do not locate the fresh air intake close to known
sources of pollutants such as automobile exhaust,
a dryer vent or chimney smoke.
• Ducting the supply outlet and/or the exhaust inlet of the
ventilator to the return air plenum of the air handler is an
excellent way to distribute fresh air and exhaust stale air
from all parts of the house, while reducing installation
costs. When choosing this method, balance the ventilator
when the air handler is running and interlock the ventilator
so that it can run only when the air handler runs. See
Fig. 6. An alternate method is to balance the ventilator
when the air handler is not running and let the ventilator
run whether the air handler is running or not, see Fig. 7. An
independent installation is shown in Fig. 8.
I
NSULATED
F
LEX DUCT COLLAR ON
VENTILATO
R
SEAL INTERIOR LINING OF
FLEX DUCT TO INSIDE COLLAR
SEAL OUTER LINING OF FLEX
DUCT TO OUTER COLLAR
M655
7

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 6
NOTE: When the home is occupied, continuous operation of
the ventilator is recommended. When the furnace air
handler operates, fresh air is distributed through the
heating/air conditioning supply registers. When the
air handler is off, fresh air is delivered through both
supplies and returns.
• An electrical interlock or an automatically powered damper
must be used to prevent unwanted entry of outside air if the
ventilator is turned off while the furnace air handler
continues to operate.
Fig. 5. Direct connection of supply air stream to furnace cold air return for HRV/ERV.
Fig. 6. Direct connection of ventilator supply air stream and exhaust air stream to furnace cold air return.
COLD AIR
RETURN
E
XHAUST AIR FROM
V
ARIOUS PARTS OF
H
OME (BATHROOMS
I
F REQUIRED; KITCHENS
I
F REQUIRED; ROOMS
W
ITHOUT OPERABLE WINDOWS,
A
ND POTENTIALLY BASEMENTS). FORCED AIR
FURNACE
COMBUSTION
OR ELECTRIC
M2085
4
RETURN
AIR
OUTDOORS
N
OTES:
1
.
2
.
3
.
4
.
FURNACE BLOWER NEED NOT OPERATE TO PROVIDE GOOD AIR DISTRIBUTION/QUALITY WITH THIS SYSTEM.
IF FURNACE BLOWER OPERATION IS REQUIRED TO HELP DISTRIBUTE SUPPLY AIR: RUN CONTINUOUSLY
OR INTERLINK ELECTRICALLY (LOW VOLTAGE).
NO SEPARATION REQUIREMENTS ARE NECESSARY BETWEEN DIRECT CONNECTION POINT AND FURNACE.
WEATHER-HOOD ARRANGEMENT IS FOR DRAWING ONLY. 6 FT (2m) MINIMUM SEPARATION REQUIRED,
18 IN. (0.46m) ABOVE GRADE MINIMUM.
40 IN. (1m) MINIMUM
COLD AIR
RETURN
FORCED AIR
FURNACE
COMBUSTION
OR ELECTRIC
M20853
RETURN
AIR
O
UTDOORS
NOTES:
1.
2.
3.
4.
FURNACE BLOWER IS REQUIRED TO OPERATE WHEN VENTILATION IS REQUIRED.
SET THE FURNACE BLOWER TO RUN CONTINUOUSLY, OR INTERLINK ELECTRICALLY
(LOW VOLTAGE).
MINIMUM SEPARATION OF 40 IN. IS REQUIRED BETWEEN THE TWO
DIRECT CONNECTIONS.
EXHAUST AIR CONNECTION SHOULD BE UPSTREAM OF THE SUPPLY
AIR CONNECTION TO PREVENT EXHAUSTING ANY FRESH AIR.
WEATHER-HOOD ARRANGEMENT IS FOR DRAWING ONLY. 6 FT. (2 m)
MINIMUM SEPARATION REQUIRED, 18 IN. (0.46m) ABOVE GRADE MINIMUM.

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
7 68-0269
Fig. 7. Independent ventilator installation.
ADJUSTABLE FRESH
AIR SUPPLY ADJUSTABLE DAMPERS FOR
BALANCING AIR FLOW INTO
AND OUT OF THE HOUSE
FRESH AIR
SUPPLY HOO
D
STALE AIR
EXHAUST HOOD
FLEXIBLE INSULATED DUCTING
WITH A VAPOR BARRIER
VENTILATOR EXHAUSTS FROM KITCHEN AND/OR
BATHROOMS OR OTHER CENTRAL LOCATIONS
TO OUTDOORS.
VENTILATOR SUPPLIES OUTDOOR AIR DIRECTLY TO
EACH BEDROOM, TO EACH FLOOR WITHOUT A
BEDROOM, AND TO THE PRINCIPAL LIVING AREAS.
ADJUSTABLE
STALE AIR
RETURN
M4911A
NOTES:
1.
2.

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 8
Balancing Airflow
Balancing the airflow verifies that the Fresh Air Ventilation
System is delivering the intended airflow and energy
performance. Use the Airflow Balancing instructions in the
Installation section to check and balance the airflow.
Controls
Remote Override Switch Functions On/Off Control
If continuous ventilation is not required, an on/off control can
be used to activate the ventilator when it is switched to
Standby. Controls that can be used for this function include
dehumidistats, timers and wall switches. If moisture control in
bathrooms is a primary function of the system, a dehumidistat
can be used to switch the ventilator from a Low or Standby
setting to the High setting. Moisture removal throughout the
entire home can only be achieved when the outside air
contains less moisture than the inside air (typically during cold
weather conditions).
Digital Fan Timer
The ventilator controls are compatible with the Digital Fan
Timer. If more than one timer is activated, each runs
independently with the ventilator running at high speed until all
timers have timed out. Up to four timers can be installed in a
system. For complete instructions on the operation of the
Digital Fan Timer, refer to the instructions packed with the
timer.
Moisture Control
When a building is new, there is excess moisture in the wood,
plaster, cement and other construction materials. When the
new building is occupied, the activities of the occupants also
increase the moisture level. There can also be high levels of
formaldehyde and other chemicals that were used in the
building materials. Running the ventilation system on high
speed provides optimum indoor air pollutant reduction. High
speed also provides maximum moisture removal when the
outside air contains less moisture than the inside air.
(Typically during cold weather conditions.)
Operating Damper Frost Control
Some models have an electronically-controlled damper frost
control mechanism. When the outside temperature drops
below 27°F (-3°C), the defrost timer is activated. At the end of
the 17 minute run cycle, when the core can experience some
nominal frost buildup, the timer activates a motor-driven
damper door that simultaneously opens the defrost port and
closes off the supply air port.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow these
instructions could damage the product or cause a haz-
ardous condition.
2. Check the ratings on the product to make sure the prod-
uct is suitable for your application.
3. Installer must be a trained, experienced service techni-
cian.
4. After installation is complete, check out product opera-
tion as provided in these instructions.
CAUTION
Electrical Shock Hazard.
Can cause personal injury or equipment damage.
Disconnect power supply to prevent electrical shock or
equipment damage.
Unpacking Fresh Air Ventilation System
Check that all the components are included. The Fresh Air
Ventilation System is shipped assembled. The carton contains
the following:
• Fresh Air Ventilation System.
• Vibration isolation straps (4).
• Drain fittings (2) and T fitting (1).
• Literature package.
Except for the mounting hardware and drain fittings, the
ventilator is ready for installation. Wiring, drain connections
and ducting are required to complete the installation.
Mounting
Suspended from Floor Joists
1. Mount the four vibration isolation straps (provided) to
the side of the ventilator using the mounting screws
located on the cabinet. See Fig. 2 and 3.
2. Securely fasten the other ends of the straps to the floor
joists with wide-head nails (not supplied), making sure
the unit is level. The straps are designed to reduce
noise, resonance or harmonics; therefore, using the full
length of the strap between the ventilator and the floor
joists is recommended.
NOTE: Removal of the door and core reduces the
weight of the ventilator, making it easier to lift
into place.
Floor Mounting
The mounting hardware included is not needed for floor
mounting.
1. Use 2 x 4 in. wood pieces to build a frame to support the
ventilator along the bottom edge. The frame must hold
the ventilator at least 10 in. up from the floor to allow
clearance for the drain line.
2. Set the frame back approximately 2 in. from the front-
edge to avoid interference with the hinged door.
3. Place the ventilator on the frame. Secure the ventilator
to the frame using screws and a strip of wood or metal;
screw into the side walls of the ventilator within 1 in. of
the bottom.
4. Connect the drain lines to a drain; see Installing Drain
Line and P-Trap section.
5. Connect the ventilator to the ducts.
Installing Drain Line and P-Trap
There are two holes at the bottom of the ventilator for the
drain pan connectors.
1. Insert the connectors through the hole in the drain pan
and the bottom of the unit.
2. Place the washer and nut on the connector.
3. Hand tighten the nut. See Fig. 9.

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
9 68-0269
Fig. 8. Installing drain line.
Construct a P-trap using the plastic T-fitting provided.
1. Cut two lengths of 1/2 in. ID hose and connect each
drain fitting to the end of the T-fitting.
2. Position the center leg of the T-fitting so it points
upward.
3. Connect the drain line to the center leg and tape it in
place to prevent any kinks. See Fig. 10.
Fig. 9. Installing P-trap.
This creates a trap that will hold some condensation and
prevent odors from being drawn up through the drain hose
into the unit. If the unit is installed during a season when it is
unlikely that condensation will form, fill the trap with tap water.
WIRING
CAUTION
Electrical Shock Hazard.
Can cause personal injury.
Be sure the ventilator is properly grounded. To prevent
electric shock when cleaning or servicing the unit,
confirm the polarity of the power line that is switched
by the safety (disconnect) switch.
The hot line (black) is the proper line to be switched. See
Fig. 11. To confirm the proper polarity, use a voltmeter or test
lamp to make sure there is no power after the switch when the
door is open. Check between that point and ground (on the
cabinet). This process must be done because occasionally
some dwellings are improperly wired.
Heat Recovery Ventilator (HRV) and Energy
Recovery Ventilator (ERV) Connections
The connector is a 3-prong, 120 Vac plug with ground. If
further wiring is required, Honeywell recommends that a
licensed electrician make all electrical connections. It is very
important that the unit be properly grounded.
Digital Fan Timer Connections
CAUTION
Electrical Hazard.
Can cause equipment damage.
Disconnect HRV/ERV from power source before
connecting or disconnecting digital fan timer or other
device to HRV/ERV high-speed override terminals.
IMPORTANT
Do not connect external power sources to the high
speed override terminals.
Mount the digital fan timer in a full or one-half depth electrical
box in the living space. See Fig. 11 for the 20 minute timer and
the 20/40/60 minute timer wiring diagrams. (See accessory
parts list, items 9 through 11, for digital fan timer selection.)
M655
2
DRAIN
PAN O RING
HR
BOTTOM WASHE
R
NUT
TO DRAIN T FITTING
TAPE
M655
1

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 10
Fig. 10. Internal schematic for fresh air ventilation systems with manual control and circuit board.
T7
209663
24V
TRANSFORMER
HS REMOTE DFR2 DFR3
P1
P4
P2
T8
T1
ST2 ST3 ST1
T9
T10
T11
T4
T5
T6
GROUND
NEUTRAL
LINE
FAN O/P
THERMISTOR
SEE DEFROST DETAIL
AUTO-
TRANSFORMER
WHITE
WHITE
DOOR INTERLOCK
1
43
2
RED
BROWN
BLACK
BLACK
BLACK
YELLOW
BLUE
BLACK
SPEED CONTROL
SWITCH
SEE
MOTOR
DETAIL
F
AN MOTOR DETAILS DEFROST DETAILS (205 ONLY)
DEFROST DETAILS (150 ONLY)
FAN
MOTOR
DIRECT MOUNTED CAPACITOR
RED
WHITE
BLACK
GREEN
YELLOW
ORANGE WHITE
T9
T6
CAP
PCB PLUG-IN
PLUG IN
CONNECTOR
RED
RED ORANGE
ORANGE
12
P1
34
PIN 1–RED
PIN 2–ORANGE
PIN 3–BLACK
PIN 4–SPARE
BLACK
BLACK
BI-DIRECTIONAL
DAMPER MOTOR
PCB PLUG-IN
PLUG IN
CONNECTOR
BLACK
RED ORANGE
ORANGE
12
P1
34
P1 PIN 1–RED
PIN 2–ORANGE
PIN 3–BLACK
PIN 4–SPARE
RED
BLACK
BI-DIRECTIONAL
DAMPER MOTOR
209271 DAMPER
MOTOR CIRCUIT
BOARD
BLK
RED
ORANGE
LEGEND
HIGH VOLTAGE
LOW VOLTAGE
FIELD INSTALLED
24V WIRING
GRN
120V SUPPLY
CORD
M13461C
20 MIN
TIMER
JS
ST4
20/40/60
TIMER
32003487
209599

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
11 68-0269
Airflow Balancing
Volume-balanced airflow in the ventilator is required. Volume
of outside air brought in must equal volume of air the unit
exhausts. If airflow is not correctly balanced:
• unit does not operate at its maximum efficiency.
• negative or positive air pressure can occur in the house.
• unit will not defrost properly.
• warranty can be voided.
Excessive positive pressure can drive moist indoor air into
building external walls where it can condense (in cold
weather) and degrade structural components. Moist indoor air
can also cause keyholes to freeze.
Excessive negative pressure can have several undesirable
side effects; in some geographic locations, soil gases such as
methane and radon can be drawn into the home through
basement/ground contact areas. Excessive negative pressure
can also cause back drafting of vented combustion equipment
when adequate combustion air supply is not provided.
Balancing Procedure
Six-inch (150 mm) diameter flow collars connected to inclined
or digital manometer, or magnehelic, with range of 0 to.25 in.
(0 to 62.5 Pa) of water are recommended for accurate airflow
measurements. To avoid airflow turbulence and incorrect
readings, flow stations should be located at a distant point of
at least five duct diameters; for example, 6 in. (150 mm) duct
requires five diameters x 6 in. (150 mm) = 30 in. (76 cm) from
nearest valve or flow restriction. This requirement applies to
both stale air to exchanger duct and fresh air to house duct.
Before balancing, make sure:
• all sealing of the ductwork system is completed.
• all of the ventilator system components are in place and
functioning properly.
• balancing dampers are fully open.
• unit is on High speed.
• airflows in branch lines to specific areas of house are
adjusted before balancing the unit. (A smoke pencil used at
the grilles is a good indicator of relative airflow for each
branch line.)
After taking readings in stale air and fresh air ducts, duct with
lower cfm (L/s) velocity reading should remain as is, while
duct with higher reading should be dampered back to match
lower reading. See Fig. 12.
Return unit to appropriate fan speed for normal operation.
STARTUP AND CHECKOUT
After installation is complete, check to be sure system is
working correctly. On units with microprocessor control, select
ventilation speed by touching fan control pad on base module
until desired speed is indicated. On units with manual control,
turn speed selection knob to desired speed. Activate two-wire
control devices in system to make sure devices switch
ventilator to High speed. For operating instructions, see
instructions packed with digital fan timer. Leave instructions
with homeowner.
Fig. 11. Balancing airflow.
SERVICE
CAUTION
Electrical Shock Hazard.
Can cause personal injury or equipment damage.
Disconnect power to unit before starting maintenance.
For maximum efficiency, the Fresh Air Ventilation System
must be maintained on a regular basis. Total Comfort System
recommends checking and cleaning at least twice a year,
preferably at the beginning of each heating and cooling
season.
Cleaning Filters and Core
HR150 AND HR200 MODELS
Remove the room air filter, fresh air filter and heat transfer
core from the ventilator as a unit.
1. Open ventilator door by loosening draw latches on top
of unit and swinging door open. For easier access,
remove door by moving it right to disengage hinges.
2. Carefully grip ends of core, (be careful not to damage
aluminum fins); then pull evenly outward. Core fits
tightly, but slides out of channels.
3. Once core is removed, filters can be removed by remov-
ing clips holding them in place. Note clip installation for
reassembly.
4. Wash the filters and the core in warm soapy water. Do
not wash them in a dishwasher.
5. Place the clean filter (wet or dry) over the core and
secure it in place with the clips.
6. Reinstall core by sliding it into the four corner channels.
(Water cannot damage gasket and label on core ends,
so it is not necessary to remove them from the core.)
ER150 AND ER200 MODELS
1. Open access door, carefully grip core ends and pull it
out evenly. Core fits tightly but slides out of cabinet.
2. Remove filter clip, remove filters from core and rinse
filters with water or a combination of soap and water. Do
not clean in a dishwasher.
3. With filters removed, clean core with a vacuum cleaner.
Vacuum only filter sides of core to pull dirt back out of
core and not through it.
4. Reinstall clean filter and reattach retaining clip.
5. Reinstall clean core.
PUSH AND TURN WITH
SLOTTED SCREWDRIVER
.
DAMPER AUTOMATICALL
Y
LOCKS WHEN PRESSUR
E
IS RELEASED.
M13462

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 12
Inspecting Exterior Hoods
Inspect exterior hoods at least monthly. Be sure exhaust and
fresh air supply hoods are not blocked or restricted by leaves,
grass or snow. In winter, be sure snow does not block hoods
and frost does not accumulate on wire mesh bird screen.
IMPORTANT
Blocked hoods can cause house/building pressure
change that can lead to possible combustion product
spillage from heating appliances.

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
13 68-0269
TROUBLESHOOTING
See Table 1.
Table 1. Troubleshooting Guide.
Symptom Cause Solution
Poor
airflow
• Plugged outside hood 1/4 in. (6 mm) mesh. • Clean exterior hoods or vents
• Filters plugged. • Remove and clean filter.
• Core obstructed. • Remove and clean core.
• House grilles closed or blocked. • Check and open grilles.
• Dampers (if installed) are closed. • Open and adjust dampers
• Poor power supply at site. • Have electrician check supply voltage at house.
• Ductwork is restricting airflow. • Check duct installation.
• Improper speed control setting. • Increase speed of ventilator.
• Ventilator airflow improperly balanced. • Have contractor balance ventilator airflow.
Supply air
feels cold
• Poor location of supply grilles, airflow can irri-
tate the occupant.
• Locate grilles high on walls or under baseboards; install
ceiling-mounted diffuser or grilles to avoid blowing directly
on occupants (example: over a sofa).
• Outdoor temperature extremely cold. • Turn down ventilator supply speed. Use a small duct heater
(1kW to temper the supply air.
• Placement of furniture or closed doors is restricting move-
ment of air in the home.
• If supply air is ducted in furnace return, run furnace fan con-
tinuously to distribute ventilation air comfortably.
Dehumidistat
is not oper-
ating
• Incorrect connection to external 24-volt control.
• Staple/nail is shorting out external low voltage.
• Check that correct wires were used.
• Check external wiring for a short.
• Check dehumidistat setting; it could be at Off. • Set dehumidistat at the desired setting.
Humidity
levels are too
high; conden-
sationappears
on windows
• Dehumidistat is set too high. • Set dehumidistat lower.
• Undersized ventilator (hot tub, indoor pool, etc) • Cover pools and hot tubs when not in use.
• Lifestyle of occupants. • Avoid hanging clothes to dry, storing wood and venting
clothes dryer inside. Consider moving wood outside.
• Moisture coming into home from crawl space
not vented or heated.
• Vent crawl space and place vapor barrier on floor of crawl
space.
• Moisture is remaining in bathroom and kitchen
areas.
• Size bathroom ducts to remove moist air as effectively as
possible; use bathroom fan to remove additional moisture.
• Condensation is forming in spring and fall. • On humid days, as seasons change, condensation appears
but air quality remains high with some ventilator use.
• Ventilator speed is set too low. • Increase speed of ventilator.
Humidity lev-
els too low
• Dehumidistat control set too low. • Set dehumidistat higher.
• Blower speed of ventilator is too high. • Decrease ventilator blower speed.
• Lifestyle of occupants. • Increase humidity with humidifiers.
• Ventilator airflow can be incorrectly balanced. • Have a contractor balance ventilator airflow.
Ventilator and/
or ducts have
frost buildup
• Ventilator airflow is incorrectly balanced. NOTE: Minimal frost build-up is expected on cores before
unit initiates defrost cycle functions.
• Check operation of dampers in exhaust vent; damper vanes
may be held open or damaged.
• Have HVAC contractor balance ventilator.
• Malfunction of ventilator defrost system. • Have HVAC contractor check defrost system.
Condensation
or ice buildup
in insulated
duct to outside
• Incomplete vapor barrier around insulated duct. • Tape and seal all joints.
• Tape any hole or tears made in outer duct covering.
• Hole or tear in outer duct covering. • Ensure vapor barrier is completely sealed.

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 14
Water in venti-
lator bottom
• Drain pans are plugged.
• Improper connection of ventilator drain lines.
• Ensure O-ring on drain nozzle adjusted correctly.
• Look for kinks in line.
• Ventilator is not level. • Level ventilator.
• Drain lines are obstructed. • Check water drain connections.
• Ventilator heat exchange not correctly installed. • Make sure water drains correctly from pan.
Table 1. Troubleshooting Guide.
Symptom Cause Solution

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
15 68-0269
PARTS LIST
HR Parts List
Item Number
(Fig. 13)
Part Number for
DescriptionHR150B HR200B
1 209746 209746 Heat Transfer Core, Aluminum with Plastic Frame
2 208359 208359 Blower Motor
3 208504 208508 Top Blower Wheel (Clockwise)
4 208505 208505 Top Blower Housing (Clockwise)
5 208506 208688 Bottom Blower Wheel (Counterclockwise)
6 208507 208507 Bottom Blower Housing (Counterclockwise)
7 209711 209711 Motor Capacitor
8 208509 208509 Condensate Pan, Left or Right
8 — — Condensate Pan, Set
9 209723 209723 Foam Prefilter, Set of 2
10 209722 209722 Clip for Foam Prefilter
11 — — Circuit Board for Damper Motor
12 208514 208514 Drain Spout
13 208515 208515 Drain "T" Fitting
14 208516 208516 Duct Collar, Red
15 208517 208517 Duct Collar, Blue
16 — — "H" Channel, 24-3/4 in. (Aluminum Core, Plastic Frame)
16 209724 209724 "H" Channel, 13-1/4 in. (Aluminum Core, Plastic Frame)
17 208519 208519 Door Hinge, Complete
18 208520 208520 Door Latch, Complete
19 209715 209715 Defrost Damper Motor, Power Return
19 — — Defrost Damper Motor, HR205
20 208522 208522 Defrost Damper Door
21 209720 209720 Nylon Circuit Board Stand-Off
22 208526 208526 Speed Control Knob
23 208383 208383 Manual Speed Control, 5-Position
24 209719 209719 Manual Control Circuit Board
25 208365 208365 Thermistor Assembly
26 208368 208368 Door Interlock Switch
27 208366 208366 Door
28 209718 209718 Auto Transformer

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 16
ER Parts List
Item Number
See Fig. 15
Part Number for
DescriptionER150B ER200B
1 32002074-001 32002074-001 Cross Flow Enthalpy Core
2 208359 208359 Blower Motor
3 208504 208508 Top Blower Wheel (Clockwise)
4 208505 208505 Top Blower Housing (Clockwise)
5 208506 208688 Bottom Blower Wheel (Counterclockwise)
6 208507 208507 Bottom Blower Housing (Counterclockwise)
7 209711 209711 Motor Capacitor
8 208509 208509 Condensate Pan, Left or Right
9 32002114-001 32002114-001 Foam Prefilter, Set of two
10 209722 209722 Clip for Foam Prefilter
12 208514 208514 Drain Spout
13 208515 208515 Drain “T” Fitting
14 208516 208516 Duct Collar, Red
15 208517 208517 Duct Collar, Blue
16 32002113-001 32002113-001 Guide Channel, Set of four
17 208519 208519 Door Hinge, Complete
18 208520 208520 Door Latch, Complete
19 209715 209715 Defrost Damper Motor, Power Return
20 208522 208522 Defrost Damper Door
21 209720 209720 Nylon Circuit Board Stand-Off
22 208526 208526 Speed Control Knob
23 208383 208383 Manual Speed Control, 5-Position
24 209719 209719 Manual Control Circuit Board
25 208365 208365 Thermistor Assembly
25 208381 208381 Temperature Sensor, Snap Disk
26 208368 208368 Door Interlock Switch
27 208366 208366 Door
28 209718 209718 Auto Transformer

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
17 68-0269
Accessory Items Parts List Not Shown—All Models
*Includes magnehelic pressure gauge and two 6 in. flow measuring stations.
Item Number Part Number Description
1 207975 Ventilation Switch
2 208378 Ducting Elbow, 4 in., plastic
3 208373 Diffuser—4 in. diameter
4 208374 Diffuser—5 in. diameter
5 208375 Diffuser—6 in. diameter
6 208379 Installation Parts Kit
7 272813 Flow Measuring Station—6 in.
8 208372 Airflow Balancing Kit*
9 209599 Digital Fan Timer, 20/40/60 minute (requires 209663 Transformer).
10 209663 24V Class II Transformer for use with 209599 Digital Fan Timer. Powers up to ten
timers.
11 32003487-001 Digital Fan Timer, 20 minute (no transformer required).

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
68-0269 18
Fig. 12. HR150 and HR200 (shown with manual control) exploded view of parts keyed to HR Parts List.
3
M15511B
1
2
4
5
6
7
25
8
8
12
13
1
4
1
5
2322
2421
28
16
17
18
19
20
26
27
9
10

HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS
19 68-0269
Fig. 13. ER150 and ER200 (shown with manual control) exploded view of ER Parts List.
3
M11889A
1
2
4
5
6
7
25
8
8
12
13
1
4
1
5
2322
2421
28
16
17
18
19
20
26
27
9
10

68-0269 G.H. 10-02 www.honeywell.com/yourhome
Automation and Control Solutions
Honeywell Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Scarborough, Ontario
M1V 4Z9
HR150, 200; ER150, 200 FRESH AIR VENTILATION SYSTEMS