With wide spread use of micro-electronics in today’s control systems, temperature management takes on a new priority in
order to ensure steady and reliable performance. The maintenance of a correct operating temperature may combine both
cooling and/ or heating inside an enclosure which can protect against costly down time and system failures.
General Selection Considerations
Cooling
ConditionsSolutionAdvantagesDisadvantages
Maximum desired enclosure
temperature is 10°F or 5°C
above maximum outside ambient.
Maximum desired enclosure
temperature lower than
maximum outside ambient.
Oversize the enclosure. Easy to implement, no maintenance.
Install ventilation
louvers.
Install filter fans.Less expensive than air/refrigeration
Use an air/air heat
exchanger.
Use an air conditioner. Easy to install. Temperature control
Maintains NEMA rating of the
enclosure.
Economical solution, very little
maintenance, easy to implement.
systems. Relatively high amount of
heat removed, some termperature
control by using thermostats.
Easy to install, small power
consumption, temperature control via
thermostat. Maintains NEMA rating of
the enclosure.
via factory installed thermostat.
Removes large amounts of heat.
Maintains NEMA rating of enclosure,
dehumidifies enclosure air.
Dissipates small amount of heat.
Larger enclosure size takes up more
space.
Dissipates limited amount of heat.
Dirt, oil or fluids could enter the
enclosure. NEMA rating is affected.
Must maintain filters. NEMA rating
can be affected. Limited use in hostile
environments such as chemical
applications.
Must maintain filters.
Must maintain filter. Generally not to
be used when outside temperature
is below 59°F (15°) or above 130°F
(52°C).
Climate Control
Circulation
ConditionsSolutionAdvantagesDisadvantages
Localized heat or 'hot spots'.Install circulation fans
in the enclosure.
Economical solution, no maintenance,
easy to install. Maintains NEMA rating
of the enclosure.
Dissipates small amount of heat.
Heating
ConditionsSolutionAdvantagesDisadvantages
Outside temperature is below
minimum allowable equipment
operation range.
Condensation occurs.Heat with radiant
Heat with radiant
heater.
heater to maintain
temperature above
the dewpoint.
Economical power consumption.
Reliable, can be temperature
controlled.
Economical power consumption.
Reliable, humidity can be controlled.
Consumes energy, takes up internal
panel space.
Consumes energy, takes up internal
panel space.
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
The proper selection of an air conditioner is determined by the following steps:
Step 1) Internal heat load quoted as Watts that must be dissipated.
Step 2) The exposed surface area of the enclosure.
Step 3) Temperature differential required between maximum inside temperature and maximum outside ambient.
Step 4) Final calculation of the above.
Climate Control
1 Watt = 3.413 BTU/H
Determine the internal heat load
(in Watts) that must be dissipated.
1 m2 = 10.76 ft
Calculate the exposed surface
area of the enclosure:
2(h" x w") + 2(h" x d") + (w" x d")
144
(Example for freestanding enclosure)
2
=Area (ft2)
1°C or 1°K
Deter mine the temperature differential
by subtracting the maximum allowable
temperature inside the enclosure (T
from the maximum ambient temperature
outside the enclosure (To).
T=1.8°F
To-Ti = DT
Step Four
(Watts x 3.413) [1.25 x Area ft
The DTS/DTT offering is available in the most popular selection of cooling capacities, sizes, voltages and mounting configurations. Available
capacities range from 1,200 to 16,000 BTU/H in both side mounting and top mounting models. All models use powerful radial fans for maximum
air circulation inside the enclosure in ambient temperatures of 125°F (+52°C). Models from 2,000 BTU/H capacity are equipped with thermal
expansion valves for optimal use of the evaporator heat exchange surface under all operating conditions. For additional protection of the
compressor motor, these valves are supplied as standard with Maximum Operating Pressure control devices (MOP). For energy conservation,
the use of hot gas bypass valves is limited to the unloaded starting and control of large compressors from 8,000 BTU/H upwards. All air
conditioners were developed, designed and subject to final inspections in accordance with international standards.
+x
2
DT (°F)] = BTU/H
Capacity Required
BTU/H. Capacity Rating.
T
)
i
388
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
Ambient outside air is never mixed with clean dry enclosure air.
Minimum +46 F (+8 C) Maximum +125 F (52 C). Optional low ambient kit is available
Is provided and/or installed on all units to maintain NEMA ratings specified.
Provided on all units for easy layout of cutouts and mounting.
Available in 115 V 60 Hz, 110 V 50 Hz and 230 V, 460 50/60Hz 3 phase.
Removable filter mat made from synthetic fibers are reusable and can be rinsed clean.
All models use environmentally friendly R134a.
All blower motors are thermal protected and sealed with permanent lubricants.
Built in condensate evaporators are standard on most models. All units feature a condensate drain fitting
complete with hose attachment.
Cold components, lines and evaporator compartment insulated for maximum efficiency and protection against
condensation.
Prior to charging, the refrigeration system is hermetically sealed with all joints brazed under protection gas
atmosphere to exclude any internal scale. After a thorough leak test every unit undergoes safety and function
checks, then is serialized and packed into sturdy boxes prior to shipment.
Included with all models are detail drawings, mounting, schematic and wiring diagrams, a trouble shooting
checklist and warranty information.
Product Summary
Side Mount Air Conditioners
Part No.NEMA Protection Rating BTU/H Rated VoltageHzHeightWidthDepth
•
hot spot cooling or low capacity
cooling is required.
Compact design uses minimal
•
surface area.
Closed loop cooling ensures air is
•
recirculated without ever mixing with
contaminated ambient air.
Standards
Maintains NEMA 12 rating
•
IP 54
•
UR, cUR and CE
•
Features
R134a refrigerant.
•
•
Thermostat control.
•
Continuous air circulation from high
capacity fans.
EMI/RFI suppression meets CE.
•
Line cord with plug (115 V).
•
Washable filter mat protected within
•
an easily removable grill.
Gasket, mounting kit and template
•
for enclosure cutout and drilling are
included.
Condensate drain hose and clamp
•
provided.
Exterior case easily removable for
•
field service.
Q Mount allows unit to hang in
•
place for easy installation.
Accessories
Gaskets...see page 400
•
Replacement filters...see page 400
•
Replacement grill...see page 400
•
Climate Control
Part NumberShip Wt. lbs
DTS1200A115LG
DTS1200A230LG
Technical Data
Electrical DataDTS1200A115LGDTS1200A230LG
Rated Voltage115 V 60 Hz230 V 50/60 Hz
Range of Operation103-127 V207-253 V
Power Consumption200 W200 W
Running Amps2.2 A1.3 A
Starting Current
Line CordWith plugWithout plug
42
42
110 V 50 Hz
15.7 A9.5 A
Refrigeration Data
Rated Capacity1,200 BTU/H (350 Watts)
Type of Refrigerant
Refrigerant Charge
Adjustable ThermostatFactory setting +95°F (+35°C)
Max. Ambient Air Temp.
Min. Ambient Air Temp.
Air Capacity (unrestricted) Internal Circulation 106 CFM
Condensate DischargeDirect via tube
Filter Mat150 g/m²
Db Noise Level
Unit Weight
Exterior CaseGalvanized sheet steel
FinishRAL7035 light grey finish
NEMA RatingEnclosures IP 54/NEMA 12
R134a
280 g
+125°F (+52°C)
+46°F (+8°C)
External Circulation 230 CFM
<
62 dB(A)
40 lbs (18 kg)
390
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
•
on any enclosure surface where hot
spot cooling or low capacity cooling
is required.
Closed loop cooling ensures clean
•
enclosure air is recirculated without
ever mixing with contaminated
ambient air.
Standards
Maintains enclosure's NEMA 12
•
rating
IP 54
•
UR, cUR and CE
•
Side Mounting DTS Series
2000 BTU/H
Expansion valve permits increased
•
efficiency through improved
evaporator heat transfer and less
frequent compressor operation.
Built in condensate evaporator.
•
Continuous air circulation from high
•
capacity fans.
EMI/RFI suppression meets CE.
•
•
Gasket, mounting kit and template
for cutout and drilling are included.
•
Condensate drain hose and clamp.
Exterior case easily removable for
•
field service.
•
Q Mount allows unit to hang in
place for easy installation.
Features
R134a refrigerant.
•
Thermostat control.
•
Line cord with plug (115 V).
•
Washable filter mat protected within
•
an easily removable grill.
Part NumberShip Wt. lbs
DTS2000A115LG
DTS2000A230LG
Technical Data
Electrical DataDTS2000A115LGDTS2000A230LG
Rated Voltage115 V 60 Hz230 V 50/60 Hz
Range of Operation103-127 V207-253 V
Power Consumption270 W230 W
Running Amps2.9 A1.3 A
Starting Current
Line CordWith plugWithout plug
54
54
110 V 50 Hz
13.8 A7.4 A
Accessories
Gaskets...see page 400
•
Replacement filters...see page 400
•
Replacement grill...see page 400
•
Refrigeration Data
Rated Capacity2,000 BTU/H (580 Watts)
Type of Refrigerant
Refrigerant Charge
Adjustable ThermostatFactory setting +95°F (+35°C)
Max. Ambient Air Temp.
Min. Ambient Air Temp.
Air Capacity (unrestricted) Internal Circulation 230 CFM
Condensate DischargeCondensate evaporator
Filter Mat150 g/m²
Db Noise Level
Unit Weight
Exterior CaseGalvanized sheet steel
FinishRAL7035 light grey finish
NEMA RatingEnclosures IP 54/NEMA 12
R134a
300 g
+125°F (+52°C)
+46°F (+8°C)
External Circulation 230 CFM
<
62 dB(A)
51 lbs (23 kg)
Climate Control
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
•
on any enclosure surface where
hot spot or low capacity cooling is
required.
Closed loop cooling ensures clean
•
enclosure air is recirculated without
ever mixing with contaminated
ambient air.
Standards
Maintains enclosure's NEMA 12
•
rating
IP 54
•
UL, cUL and CE
•
Features
R134a refrigerant.
•
Thermostat control accessible from
•
inside enclosure.
Expansion valve increases
•
efficiency with improved evaporator
heat transfer and less frequent
compressor operation.
Direct condensate discharge via
•
drain hose.
Continuous air circulation from high
•
capacity fans.
EMI/RFI suppression meets CE.
•
Self-diagnostics on startup.
•
Fault indication via LED light.
•
Door contact for power down when
•
enclosure door is opened.
Gasket, mounting kit and template
•
for cutout and drilling are included.
Condensate drain hose and clamp
•
Easy install with "Click & Fit" sys-
•
tem
Technical Data
Electrical DataDTS3041A115LGDTS3041A230LG
Rated Voltage115v 60 Hz230v 50/60 Hz
110v 50 Hz
Range of Operation
Power Consumption690 W724 W
Running Amps6.0 A3.3 A
Starting Current
Line CordWith PlugWith Plug
103-127v207-253v
28 A14.4 A
Accessories
Gaskets...see page 400
•
Remote door switch...see page 400
•
Part NumberShip Wt. lbs
DTS3041A115LG
DTS3041A230LG
Refrigeration Data
Rated Capacity2500 BTU/H (585 Watts)
Type of Refrigerant
Refrigerant Charge
Adjustable Set PointsFactory setting +95°F (+35°C)
Max. Ambient Air Temp.
Min. Ambient Air Temp.
Air Capacity (unrestricted) Internal Circulation 191 CFM
Condensate DischargeCondensate Drain
Filter MatFilterless
Db Noise Level
Unit Weight
Exterior CaseGalvanized sheet steel
FinishRAL7035 light grey finish
NEMA RatingEnclosures IP 54/NEMA 12
R134a
400 g
+131°F (+55°C)
+59°F (+15°C)
External Circulation 88 CFM
<
64 dB(A)
51 lbs (23 kg)
56
56
392
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
•
on any enclosure surface where
hot spot or low capacity cooling is
required.
Closed loop cooling ensures clean en-
•
closure air is recirculated without ever
mixing with contaminated ambient air.
Standards
Maintains enclosure's NEMA 12
•
rating
IP 54
•
UR, cUR and CE
•
Features
R134a refrigerant.
•
Thermostat control.
•
•
Expansion valve increases
efficiency with improved evaporator
heat transfer and less frequent
compressor operation.
Built in condensate evaporator.
•
•
Continuous air circulation from high
capacity fans.
EMI/RFI suppression meets CE.
•
Line cord with plug (115 V).
•
Self-diagnostics on startup.
•
•
Fault indication via LED light.
Door contact for power down when
•
enclosure door is opened.
Washable filter mat protected within
•
an easily removable grill.
•
Gasket, mounting kit and template
for cutout and drilling are included.
Condensate drain hose and clamp.
•
Exterior case easily removable for
•
resetting thermostat and field service.
•
Q Mount allows unit to hang in
place for easy installation.
Accessories
Gaskets...see page 400
•
Lifting lugs...see page 400
•
Remote door switch...see page 400
•
Replacement filters...see page 400
•
Replacement grill...see page 400
•
Climate Control
Refrigeration Data
Part NumberShip Wt. lbs
DTS3500A115LG
DTS3500A230LG
99
99
Technical Data
Electrical DataDTS3500A115LGDTS3500A230LG
Rated Voltage115 V 60 Hz230 V 50/60 Hz
110 V 50 Hz
Range of Operation103-127 V207-253 V
Power Consumption590 W550 W
Running Amps6.7 A2.9 A
Starting Current
Line CordWith plugWithout plug
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
17.5 A8.3 A
Rated Capacity3,500 BTU/H (1,014 Watts)
Type of Refrigerant
Refrigerant Charge
Adjustable Set PointsFactory setting +95°F (+35°C)
Max. Ambient Air Temp.
Min. Ambient Air Temp.
Air Capacity (unrestricted) Internal Circulation 247 CFM
Condensate DischargeCondensate evaporator
Filter Mat150 g
Db Noise Level
Unit Weight
Exterior CaseGalvanized sheet steel
FinishRAL7035 light grey finish
NEMA RatingEnclosures IP 54/NEMA 12
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
99
99
127
127
Electrical DataDTS3141A115LG
Rated Voltage115 V 60 Hz/115 V 60 Hz/
Range of Operation103-127 V/198-252 V103-127 V/198-252 V
Power Consumption950 W/860 W1400 W/1400 W
Running Amps7.2 A/4.0 A14.6 A/6.3 A
Starting Current
Line CordTerminal BlockTerminal Block
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise
189
189
189
189
Rated Voltage115 V 60 Hz/115 V 60 Hz/
Range of Operation103-127 V/187-253 V103-127 V/187-253 V
Power Consumption2,100 W/1,800 W2,300 W/2,000 W
Running Amps21.0 A/12.5 A21.0 A/12.5 A
Starting Current
Line Cord8' Cord8' Cord
•
any enclosure surface where high
capacity system cooling is required.
Closed loop cooling ensures clean
•
enclosure air is recirculated without
ever mixing with contaminated
ambient air.
Climate Control
Part NumberShip Wt. lbs
DTS9841A460LG
Technical Data
Electrical DataDTS9841A460LG
Rated Voltage460v 60Hz 3 phase
Range of Operation
Power Consumption
Running Amps4.2A / 3.6A
Starting Current
Line CordTerminal Block
Refrigeration Data
Rated Capacity16,000 BTU/H (4,000 Watts)
Type of Refrigerant
Refrigerant Charge
Adjustable Set PointsFactory setting +95°F (+35°C)
Max. Ambient Air Temp.
Min. Ambient Air Temp.
Air Capacity (unrestricted) Internal Circulation 882 CFM
Condensate DischargeCondensate Drain
Filter MatFilterless
Db Noise Level
Unit Weight
Exterior CaseGalvanized sheet steel
FinishRAL7035 light grey finish
NEMA RatingEnclosures IP 54/NEMA 12
210
380v 50Hz / 460v 60Hz
1891W / 2336W
28.3A / 25.2A
R134a
2,100 g
+131°F (+55°C)
+59°F (+15°C)
External Circulation 1,076 CFM
<
70 dB(A)
200 lbs (91 kg)
Standards
Maintains enclosure's NEMA 12
•
rating
IP 54
•
UR, cUR and CE
•
Features
R134a refrigerant.
•
Thermostat control accessible from
•
inside enclosure.
Expansion valve increases
•
efficiency with improved evaporator
heat transfer and less frequent
compressor operation.
Direct condensate discharge via
•
drain hose.
Continuous air circulation from high
•
capacity fans.
EMI/RFI suppression meets CE.
•
Self-diagnostics on startup.
•
Fault indication via LED light.
•
Door contact for power down when
•
enclosure door is opened.
Gasket, mounting kit and template
•
for cutout and drilling are included.
Condensate drain hose and clamp.
•
Accessories
Gaskets...see page 400
•
Lifting lugs...see page 400
•
Remote door switch...see page 400
•
398
Technical references and DXF downloads available at www.hammfg.comAll dimensions in inches unless specified otherwise