Temspec VUD 1200 Manual
Temspec Unit Ventilator IOM 2023-07-05
Operation & Maintenance Manual
Unit Ventilators
© 2023 TEMSPEC INCORPORATED
IMPORTANT: Read and save this manual for future reference.
This manual is to be left with the equipment owner
Temspec Unit Ventilator IOM 2023-07-05
[1]
INTRODUCTION...................................................................................................................................................................2
About the Unit Ventilator ............................................................................................................................................................................................................2
NOMENCLATURE FOR NON-COMPRESSORIZED UNIT VENTILATORS............................................................................................................................2
SAFETY WARNINGS ...........................................................................................................................................................3
ELECTRICAL CONNECTIONS.............................................................................................................................................4
Line Voltage Connections ..........................................................................................................................................................................................................4
Type and Ratings of Fuses and Circuit Breakers......................................................................................................................................................................4
Grounding...................................................................................................................................................................................................................................4
Low Voltage Connections ..........................................................................................................................................................................................................4
TYPICAL LAYOUTS .............................................................................................................................................................5
VUD 1200...................................................................................................................................................................................................................................5
VUD 1600...................................................................................................................................................................................................................................6
VUD 2000...................................................................................................................................................................................................................................7
VUF 1200 ...................................................................................................................................................................................................................................8
VUF 1500 ...................................................................................................................................................................................................................................9
VDF 1200 .................................................................................................................................................................................................................................10
HCD 1200.................................................................................................................................................................................................................................11
HCD 1600.................................................................................................................................................................................................................................12
VER 1800.................................................................................................................................................................................................................................13
VGB 1600.................................................................................................................................................................................................................................14
HGB 1600.................................................................................................................................................................................................................................15
VUD Face and Bypass.............................................................................................................................................................................................................16
OPERATION.......................................................................................................................................................................17
Typical Modes of Operation .....................................................................................................................................................................................................17
Standard Piping........................................................................................................................................................................................................................18
Dampers...................................................................................................................................................................................................................................22
Powered Exhaust .....................................................................................................................................................................................................................22
Filtration....................................................................................................................................................................................................................................22
VER ERW Balancing Procedure..............................................................................................................................................................................................23
MAINTENANCE..................................................................................................................................................................24
Servicing the Unit .....................................................................................................................................................................................................................24
Maintenance Schedule.............................................................................................................................................................................................................24
Changing the Filters .................................................................................................................................................................................................................24
Cleaning the Coils ....................................................................................................................................................................................................................25
Motors.......................................................................................................................................................................................................................................25
Cleaning the Energy Recovery Wheel.....................................................................................................................................................................................25
Maximum Operating Conditions..........................................................................................................................................27
TROUBLESHOOTING........................................................................................................................................................27
Accessories Instructions .....................................................................................................................................................28
Block-off Panel .........................................................................................................................................................................................................................28
Side Pipe Cover .......................................................................................................................................................................................................................29
Top Extension ..........................................................................................................................................................................................................................30
Top Plenum –Free Discharge.................................................................................................................................................................................................31
Top Acoustical Plenum ............................................................................................................................................................................................................32
Raised Base.............................................................................................................................................................................................................................33
Rear Plenum.............................................................................................................................................................................................................................34
Wall Assembly..........................................................................................................................................................................................................................36
REPLACEMENT PARTS....................................................................................................................................................37
Limited Warranty......................................................................................................................................................................................................................37
Part Sales.................................................................................................................................................................................................................................37
Temspec Unit Ventilator IOM 2023-07-05
[2]
INTRODUCTION
About the Unit Ventilator
The Temspec unit ventilator is designed as a means for providing heating, cooling, and ventilation to
the classroom. Our goal is to help create an enhanced learning environment by focusing on the
following points when designing our equipment:
•Cooling, Heating, Humidity And Ventilation Control
•Air Distribution
•Sound Attenuation
By installing the vertical unit ventilator into the classroom, superior control can be obtained for each
room. Because the unit can be ducted, an even distribution of air can be achieved throughout the
room. The unit ventilator is constructed with heavy gauge metal and sound absorbing insulation for
optimal sound attenuation.
By applying sound engineering principles and thorough testing, we ensure the highest quality of
performance of our unit ventilators.
NOMENCLATURE FOR NON-COMPRESSORIZED UNIT VENTILATORS
V=Vertical Unit
H=Horizontal
UD = Upflow Ducted Unit Ventilator
UF = Upflow Freeblow (direct discharge) Unit Ventilator
CD = Horizontally Ducted Unit Ventilator
DF = Downflow Unit Ventilator
ER = Energy Recovery Unit Ventilator
GB = Dual Coil Dehumidifying Air Handling Unit
1200 = up to 1200 cfm
1500 = up to 1500 cfm
1600 = up to 1600 cfm
1800 = up to 1800 cfm
2000 = up to 2000 cfm
1200
UD
V
Temspec Unit Ventilator IOM 2023-07-05
[3]
SAFETY WARNINGS
Read the manual thoroughly before installing and using the appliance. This will ensure the best
results and maximum safety.
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Field wires on the line side of the disconnect located inside the unit remain live, even when the
disconnect switch is off. Service and maintenance to incoming wiring cannot be performed until
the main remote disconnect is turned off, locked out and tagged.
This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
“Children should be supervised to ensure that they do not play with the appliance.”
WARNING
This appliance may contain UV-C LEDs
DO NOT OPERATE UV-C LAMPS OUTSIDE THE APPLIANCE
UV Light Hazard. Harmful to skin and eyes. Can cause temporary or permanent loss of vision.
Never look at the lamp while illuminated. To prevent exposure to ultraviolet light, be sure the
power is disconnected before servicing.
DO NOT touch UVC LEDs with bare hands
CAUTION
This appliance may contain an Ionizer
Ionizer generates high voltage. Make sure power is disconnected before cleaning the ionizer
brush heads.
Remove any accumulated dirt on the ionizer brush heads to prevent risk of flashover or fire.
Temspec Unit Ventilator IOM 2023-07-05
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ELECTRICAL CONNECTIONS
Use Copper Supply Wires Only
Use Supply Wires Suitable for 90◦C
Our unit Ventilators are available in the following voltages: 120/1/60, 208/1/60, 240/1/60,
277/1/60, 208/3/60, 480/3/60, 480/3/60 + N
The electrical circuit in the unit ventilator is highly dependent on the controller and control sequence
that is being utilized. A copy of the electrical schematic can be found folded in a pouch inside of the
unit ventilator or in the final job submittal.
Access to power is through the top of the unit (unless ordered differently). The unit has a single point
connection at the junction box (comes with disconnect switch) located inside the unit either above or
below the electrical box. Junction box may be located on the rebate inside the unit if the electrical
enclosure is door mounted. A circuit breaker may be used instead of the disconnect depending on
the amperage.
The electrical wiring must be in accordance with the current applicable national and local codes. A
qualified electrician must carry out the work. The electrical power to the unit should be disconnected
by opening the remote disconnect device prior to opening the access panel. The wiring diagram shall
be followed thoroughly when making connections to the unit.
A conduit is to be field installed in the unit such that hazardous voltage wiring is protected until it is
terminated. In the junction box or electrical enclosure.
Line Voltage Connections
Connect power leads from the field disconnect to the pigtails provided with the disconnect at the
junction box located inside the appliance and ground at the green screw located inside the junction
box.
If a circuit breaker is used, terminate the field provided line leads directly at the circuit breaker. The
neutral line to be terminated at the power distribution block and ground at the lug located beside the
circuit breaker inside the electrical enclosure.
Type and Ratings of Fuses and Circuit Breakers
Up to 30A time delay fuses are used. Up to 3 pole 100A circuit breakers are used.
Grounding
The unit Ventilator must be grounded for field connections wires up to #10 AWG using the green
ground screw inside the junction box. If the field connection wires are larger than # 10 AWG, the
grounding point is a ground lug installed in the electrical enclosure.
Low Voltage Connections
There is a sheet metal barrier between line voltage and extra low voltage circuits inside the
electrical enclosure. Low voltage connections are to be made to the terminal block or a controller
mounted on the low voltage side of the electrical enclosure. The unit is equipped with 1/2 inch flex
metal conduit to segregate wires entering unit. A conduit termination port is provided on the
electrical enclosure.
Temspec Unit Ventilator IOM 2023-07-05
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TYPICAL LAYOUTS
VUD 1200
CW
O.A. Outdoor Air
1. Supply air fan.
2. Hot water coil. Optional electric or steam
coil available.
3. DX cooling coil.
4. Drain pan.
5. Outdoor air damper.
6. Spring return mixed air damper actuator.
7. Filters.
SIDE SECTION
(Hot Water /
Chilled Water)
SIDE SECTION
(Split System DX)
6
S.A. Supply Air
21.5"
R.A.
8
21.5"
O.A.
5
4
3
2
1
7O.A.
9
HW
S.A.
8. Return air damper.
9. 2 pipe or 4 pipe (hot water coil can be
in the reheat position).
10. Ceiling tile.
11. Top extension (optional).
12. Coil access panel.
13. Hinged filter access panel.
14. Heavy duty return air grille.
FRONT ELEVATION
14
R.A.
R.A. Return Air
28"
Duct By
Others
10
11
12
13
4
S.A.
93"
H
NOTE: The component arrangement shown above may vary slightly from that in the unit supplied.
Temspec Unit Ventilator IOM 2023-07-05
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VUD 1600
CW
O.A. Outdoor Air
1. Supply air fan.
2. Hot water coil. Optional electric or steam
coil available.
3. DX cooling coil.
4. Drain pan.
5. Outdoor air damper.
6. Spring return mixed air damper actuator.
7. Filters.
SIDE SECTION
(Hot Water /
Chilled Water)
SIDE SECTION
(Split System DX)
6
S.A. Supply Air
23"
R.A.
8
23"
O.A.
5
4
3
2
1
7O.A.
9
HW
S.A.
8. Return air damper.
9. 2 pipe or 4 pipe (hot water coil can be
in the reheat position).
10. Ceiling tile.
11. Top extension (optional).
12. Coil access panel.
13. Hinged filter access panel.
14. Heavy duty return air grille.
FRONT ELEVATION
14
R.A.
R.A. Return Air
33"
Duct By
Others
10
11
12
13
4
S.A.
93"
H
NOTE: The component arrangement shown above may vary slightly from that in the unit supplied.
Temspec Unit Ventilator IOM 2023-07-05
[7]
VUD 2000
O.A. Outdoor Air
S.A.
8
5
S.A. Supply Air
1. Dual supply air fans.
2. DX cooling coil.
3. Filters.
4. Spring return mixed air damper actuator.
5. Outdoor air damper.
6. Hot water coil. Optional electric or steam
coil available.
7. Drain pan.
SIDE SECTION
(Split System DX)
O.A.
23"
O.A.
R.A.
SIDE SECTION
(Hot Water /
Chilled Water)
23"
4
1
2
3
9
7
6CW
HW
S.A.
R.A. Return Air
8. Return air damper.
9. 2 pipe or 4 pipe (hot water coil can be
in the reheat position).
10. Ceiling tile.
11. Top extension (optional).
12. Coil access panel.
13. Hinged filter access panel.
14. Heavy duty return air grille.
FRONT ELEVATION
R.A. 14
44"
13
12
11
10
Duct By
Others
93"
H
NOTE: The component arrangement shown above may vary slightly from that in the unit supplied.
Temspec Unit Ventilator IOM 2023-07-05
[8]
VUF 1200
O.A. Outdoor Air
SIDE SECTION
(Hot Water /
Chilled Water)
S.A. Supply Air
1. Hot water coil. Optional electric or steam
coil available.
2. DX cooling coil.
3. Drain pan.
4. Supply air fan.
5. Outdoor air damper.
6. Spring return mixed air damper actuator.
7. Filters.
SIDE SECTION
(Split System DX)
21.5"
R.A.
21.5"
3
5
6
O.A.
4
1
2
O.A.
7
8
S.A.
9
HW
CW
R.A. Return Air
8. Return air damper.
9. 2 pipe or 4 pipe (hot water coil can be
in the reheat position).
10. Double deflection supply air grille.
11. Coil access panel.
12. Hinged filter access panel.
13. Heavy duty return air grille.
FRONT ELEVATION
13
R.A.
28"
10
11
12
3
S.A. S.A.
93"
S.A.
NOTE: The component arrangement shown above may vary slightly from that in the unit supplied.
Temspec Unit Ventilator IOM 2023-07-05
[9]
VUF 1500
S.A.
O.A. Outdoor Air
R.A.
S.A. Supply Air
1. DX cooling coil.
2. Dual supply air fans.
3. Filters.
4. Spring return mixed air damper actuator.
5. Outdoor air damper.
6. Hot water coil. Optional electric or steam
coil available.
7. Drain pan.
SIDE SECTION
(Split System DX)
O.A.
23"
O.A.
R.A.
SIDE SECTION
(Hot Water /
Chilled Water)
23"
4
2
1
3
58
7
6
S.A.
9
HW
CW
R.A. Return Air
8. Return air damper.
9. 2 pipe or 4 pipe (hot water coil can be
in the reheat position).
10. Double deflection grilles.
11. Coil access panel.
12. Hinged filter access panel.
13. Heavy duty return air grille.
FRONT ELEVATION
13
44"
12
11
10
S.A.
93"
S.A.
NOTE: The component arrangement shown above may vary slightly from that in the unit supplied.
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10
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