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THERMA-FUSER
TROUBLE SHOOTING (TF-C, TF-CW AND TF-HC)
Trouble shooting Therma-Fuser diffusers requires looking at the systems as a whole. Before examining the Therma-Fuser diffuser
for failure it is worth the time to be sure the system is functioning properly and that something has not been overlooked. Before
calling Acutherm, please complete the data log for all Therma-Fuser diffusers to be evaluated.
System Check
The system should be:
1.
Delivering 50°- 68°F/10° - 20°C supply air when in the
cooling mode.
2.
Delivering 80°-120°F/26.5° – 49°C supply air when in the
heating mode (TF-CW and TF-HC).
Therma-Fuser Diffuser Check
Once the above checks have been completed examine and record the following (Conditions may vary over time; several
measurements at different times may be required):
5.
Room temperature 4ft/1.2m above the floor directly under
the Therma-Fuser diffuser.
6.
Supply air temperature at the Therma-Fuser diffuser.
7.
Static pressure at the inlet of the Therma-Fuser diffuser.
8.
Blade opening from the edge of the blade, measured
perpendicular to the housing.
9.
Control plate position (clockwise or counter clockwise
from center).
10. Cooling and heating setpoints.
11. Thermostat extension.
Page 4
12. Is the Therma-Fuser diffuser located within 2ft/600mm of a
TROUBLE SHOOTING (TF-C, TF-CW
vertical protrusion such as a wall or dropped beam which
AND TF-HC)
could disturb induction air flow?
Trouble shooting Therma-Fuser diffusers requires looking at the
systems as a whole. Before examining the Therma-Fuser diffuser
for failure it is worth the time to be sure the system is functioning
properly and that something has not been overlooked. Before
calling Acutherm, please complete the data log for all Therma-
Fuser diffusers to be evaluated.
SYSTEM CHECK
The system should be:
1.
Delivering 50°- 68°F/10° - 20°C supply air when in the
cooling mode.
2.
Delivering 80°-120°F/26.5° – 49°C supply air when in the
heating mode (TF-CW and TF-HC).
3.
Maintaining static pressure at the inlet to each Therma-
Fuser diffuser between .05 and .25"wg/12 Pa and 62 Pa.
4.
Maintaining continuous fan operation during occupied hours.
THERMA-FUSER DIFFUSER CHECK
Once the above checks have been completed examine and
record the following (Conditions may vary over time; several
measurements at different times may be required):
5.
Room temperature 4ft/1.2m above the floor directly under
the Therma-Fuser diffuser.
6.
Supply air temperature at the Therma-Fuser diffuser.
7.
Static pressure at the inlet of the Therma-Fuser diffuser.
8.
Blade opening from the edge of the blade, measured
perpendicular to the housing.
Foam
8
THERMA-FUSER - Manual | acutherm.com
10. Cooling and heating
setpoints.
11. Thermostat extension.
12. Is the Therma-Fuser
diffuser located within
2ft/600mm of a verti-
cal protrusion such as
a wall or dropped
beam which could dis-
turb induction air flow?
DATA LOG
Location
Date
Time
Blade
Page 4
Page 4
TROUBLE SHOOTING (TF-C, TF-CW
TROUBLE SHOOTING (TF-C, TF-CW
AND TF-HC)
AND TF-HC)
Trouble shooting Therma-Fuser diffusers requires looking at the
Trouble shooting Therma-Fuser diffusers requires looking at the
systems as a whole. Before examining the Therma-Fuser diffuser
systems as a whole. Before examining the Therma-Fuser diffuser
for failure it is worth the time to be sure the system is functioning
for failure it is worth the time to be sure the system is functioning
properly and that something has not been overlooked. Before
properly and that something has not been overlooked. Before
calling Acutherm, please complete the data log for all Therma-
calling Acutherm, please complete the data log for all Therma-
Fuser diffusers to be evaluated.
Fuser diffusers to be evaluated.
SYSTEM CHECK
SYSTEM CHECK
The system should be:
The system should be:
1.
Delivering 50°- 68°F/10° - 20°C supply air when in the
1.
Delivering 50°- 68°F/10° - 20°C supply air when in the
cooling mode.
cooling mode.
2.
Delivering 80°-120°F/26.5° – 49°C supply air when in the
2.
Delivering 80°-120°F/26.5° – 49°C supply air when in the
heating mode (TF-CW and TF-HC).
heating mode (TF-CW and TF-HC).
3.
Maintaining static pressure at the inlet to each Therma-
3.
Maintaining static pressure at the inlet to each Therma-
Fuser diffuser between .05 and .25"wg/12 Pa and 62 Pa.
Fuser diffuser between .05 and .25"wg/12 Pa and 62 Pa.
4.
Maintaining continuous fan operation during occupied hours.
4.
Maintaining continuous fan operation during occupied hours.
3.
Maintaining static pressure at the inlet to each Therma-
THERMA-FUSER DIFFUSER CHECK
THERMA-FUSER DIFFUSER CHECK
Fuser diffuser between .05 and .25"wg/12 Pa and 62 Pa.
Once the above checks have been completed examine and
Once the above checks have been completed examine and
4.
record the following (Conditions may vary over time; several
Maintaining continuous fan operation during occupied
record the following (Conditions may vary over time; several
measurements at different times may be required):
measurements at different times may be required):
hours.
5.
Room temperature 4ft/1.2m above the floor directly under
5.
Room temperature 4ft/1.2m above the floor directly under
the Therma-Fuser diffuser.
the Therma-Fuser diffuser.
6.
Supply air temperature at the Therma-Fuser diffuser.
6.
Supply air temperature at the Therma-Fuser diffuser.
7.
Static pressure at the inlet of the Therma-Fuser diffuser.
7.
Static pressure at the inlet of the Therma-Fuser diffuser.
8.
Blade opening from the edge of the blade, measured
8.
Blade opening from the edge of the blade, measured
perpendicular to the housing.
perpendicular to the housing.
Foam
Blade
9.
Control plate position (clockwise or counter clockwise from
9.
Control plate position (clockwise or counter clockwise from
center).
center).
Heating thermostat
10. Cooling and heating
Heating Mode—counter clock-
Heating Mode—counter clock-
HEATING MODE − COUNTER
wise from center position
wise from center position
CLOCKWISE FROM CENTER POSITION
11. Thermostat extension.
Protected by U.S. Patents RE 30,953 and 4,523,713.
Protected by U.S. Patents RE 30,953 and 4,523,713.
12. Is the Therma-Fuser
Canada: Patent 1987 – Brevete 1987.
Canada: Patent 1987 – Brevete 1987.
Patents pending in other countries
Patents pending in other countries
Read Setpoint
Here
Subject to change without notice.
Subject to change without notice.
Form 12.2 REV 1704
Form 12.2 REV 1704
Printed in USA on Recycled Paper with Soybean Based Ink
Printed in USA on Recycled Paper with Soybean Based Ink
DATA LOG
Location
Measure Extension
Here
Room
S.A.
Duct
Blade
Control
Housing
Temp
Temp
S.P.
Opening
Disc
Position
Heating Cooling Heating Cooling
Page 4
TROUBLE SHOOTING (TF-C, TF-CW
AND TF-HC)
Trouble shooting Therma-Fuser diffusers requires looking at the
systems as a whole. Before examining the Therma-Fuser diffuser
for failure it is worth the time to be sure the system is functioning
properly and that something has not been overlooked. Before
calling Acutherm, please complete the data log for all Therma-
Fuser diffusers to be evaluated.
SYSTEM CHECK
The system should be:
1.
Delivering 50°- 68°F/10° - 20°C supply air when in the
cooling mode.
2.
Delivering 80°-120°F/26.5° – 49°C supply air when in the
heating mode (TF-CW and TF-HC).
3.
Maintaining static pressure at the inlet to each Therma-
Fuser diffuser between .05 and .25"wg/12 Pa and 62 Pa.
4.
Maintaining continuous fan operation during occupied hours.
THERMA-FUSER DIFFUSER CHECK
Once the above checks have been completed examine and
record the following (Conditions may vary over time; several
measurements at different times may be required):
5.
Room temperature 4ft/1.2m above the floor directly under
the Therma-Fuser diffuser.
6.
Supply air temperature at the Therma-Fuser diffuser.
7.
Static pressure at the inlet of the Therma-Fuser diffuser.
8.
Blade opening from the edge of the blade, measured
perpendicular to the housing.
Foam
Foam
Housing
Housing
Blade
Blade
Small Steel Rule
Small Steel Rule
9.
Control plate position (clockwise or counter clockwise from
center).
Heating thermostat
Cooling thermostat
Cooling thermostat
Heating thermostat
Heating Mode—counter clock-
Cooling Mode—clockwise from
wise from center position
center position
setpoints.
Cooling Mode—clockwise from
Cooling Mode—clockwise from
COOLING MODE − CLOCKWISE
Protected by U.S. Patents RE 30,953 and 4,523,713.
center position
center position
Canada: Patent 1987 – Brevete 1987.
FROM CENTER POSITION
Patents pending in other countries
Read Setpoint
Subject to change without notice.
Form 12.2 REV 1704
Here
Printed in USA on Recycled Paper with Soybean Based Ink
diffuser located within
2ft/600mm of a verti-
cal protrusion such as
a wall or dropped
beam which could dis-
turb induction air flow?
Date
Time
Room
S.A.
Duct
Blade
Temp
Temp
S.P.
Opening
Set Points
Extension
10. Cooling an
10. Co
setpoints.
11. Thermosta
11. Th
10. Cooling and heating
setpoints.
12. Is the Therm
12. Is t
diffuser loc
2ft/600mm
cal protrusi
a wall or dr
beam whic
11. Thermostat extension.
turb induct
12. Is the Therma-Fuser
DATA LO
DAT
diffuser located within
2ft/600mm of a verti-
cal protrusion such as
a wall or dropped
beam which could dis-
Location
Date
Location
turb induction air flow?
DATA LOG
Location
Date
Time
Room
S.A.
Temp
Temp
Housing
TEN YEAR WARRANTY
Small Steel Rule
TEN YEA
Acutherm warrants that its Model TF The
any options and accessories (whether f
free from defects in material or workm
Acutherm warra
years from the date of shipment and a
any options and
option, any parts that fail during said ten
defects which would not have occured
free from defec
Cooling thermostat
provided that such parts have been ins
years from the
defective and provided the diffusers hav
usage and all parts and controls remain
option, any part
WARRANTY OF MERCHANTABILITY OF
defects which w
NESS FOR ANY PURPOSE OR ANY
WARRANTY WHICH EXTENDES BEYO
provided that s
ABOVE. ACUTHERM'S LIABILITY FOR
defective and p
DAMAGES RESULTING FROM DEF
EXCEED THE COST OF REPAIR OR RE
usage and all p
DEFECTIVE UPON EXAMINATION B
WARRANTY OF
SHALL ACUTHERM BE LIABLE FOR IN
NESS FOR AN
SEQUENTIAL DAMAGES OR DAMAGES
PROPERTY. Acutherm shall not be resp
WARRANTY WH
plant in connection with the inspection
ABOVE. ACUTH
under the terms of this limited warranty n
tion.
DAMAGES RE
EXCEED THE C
DEFECTIVE UP
SHALL ACUTHE
SEQUENTIAL D
PROPERTY. Acu
plant in connec
under the terms
tion.
Measure Extension
Here
Control
Set Points
Extension
Disc
Position
Heating Cooling Heating Cooling
set
diff
Read
2ft
Here
cal
a w
bea
tur
Time
D
Duct
Blad
S.P.
Open
TEN
Acuth
any o
free fr
years
option
defect
provid
defect
usage
WARR
NESS
WARR
ABOV
DAMA
EXCE
DEFE
SHAL
SEQU
PROPE
plant
under
tion.
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