Russell HTA14-42B User Manual
All-Temp²B
221 S. Berry St., P.O. Box 1030, Brea, CA 92822-1030 • Tel: (714) 529-1935 • Fax: (714) 529-7203
Low Profile
Unit Cooler
Publication No. 100.14
January, 2008
MEA
Air Defrost - 3,900 to 39,000 BTUH
Electric Defrost - 3,600 to 28,000 BTUH
Hot Gas Defrost - 3,600 to 28,000 BTUH
Small to Medium
Walk - Ins
Coolers & Freezer
Applications
Visit us on the Web: www.russellcoil.com
Now available with optional
ECM Motors
High Efficiency / High Reliability
All-Temp²B
Sizes
There are 35 sizes available with 3,700 to 39,000 BTUH
at a 10° TD ranging from 740 to 4,980 cfm. One through
six fan models are available.
Housing
Rust-free, heavy gauge, textured Aluminum casing is light
weight yet durable. Each fan section is baffled to prevent
short cycling of the air. The unit is designed to mount flush
to the ceiling and meets all NSF requirements. Slotted
hangers are provided for easy installation. Drain fittings are
installed in the horizontal position to gain more usable headroom in low ceiling applications. The end panels now are
hinged to open up out for easy access to both the piping and
electrical ends. Optional expansion valves can be conveniently
installed inside the cabinet.
Coil
Seamless Copper tubes are staggered and mechanically
expanded into corrugated Aluminum fins and heavy gauge
tube sheets to achieve maximum heat transfer and strength.
Die formed fin collars provide even fin spacing. Fin spacings available are 4, 6, and 8 fins per inch. Sweat connections
are standard on all models and optional field installed flare
connection kits are available at no extra charge.
Motors
Standard motors are 1/20 HP, permanently lubricated, ball
bearing, with thermal overload protection. Available in 115V,
208/230V and 460V, single phase. Optional high efficiency
PSC and ECM motors are available in 115V and 230V.
Fans
Heavy duty 12” Aluminum fans are balanced to provide
vibration-free operation. Our new low throw black plastic
fan guards have an improved air pattern. The optional
epoxy resin high throw fan guard moves air up to 50 feet.
Air Defrost
All models with the prefix “HTA” are designed for use in coolers of 35°F and warmer. Complete air defrost systems for
off-cycle or timed air defrost are available.
Electrical
Available in 115V, 208/230V, and 460V (see pages 4 & 5). All
components are factory wired to convenient screw-type
terminal strips. A large compartment is supplied internal to
the unit for all electrical components and is easily accessible
by removing the end panel. All models are UL & cUL listed.
Electric Defrost
Available on all models with the prefix “HTE”. Designed for
use where electric heat is used to defrost. Placement of the
heaters internal to the coil allows for an extremely rapid and
efficient defrost. This arrangement enables the heat to be
conducted through the fins from the center out for an even
defrost pattern. All heaters are wired to a terminal strip to
allow a quick field change-over from single phase to three
phase, 230V to 460V and vice versa. A lower heater is
installed close to the drain pan for fast, reliable drainage. A
defrost termination thermostat (DT) terminates the defrost
cycle when the temperature is satisfied. A heater safety
thermostat is installed to prevent heaters from overheating
above 75° in case of DT failure. All heaters are flexible and
can be easily replaced within 12 inches of the end of the
units. A fan delay thermostat is supplied to allow the warm
coil to cool after a defrost cycle prior to the fans turning on.
Complete electric defrost refrigeration systems are available.
Features
The All-Temp²B is the original low profile unit cooler that has established an industry standard as being the all
purpose design for walk-in coolers, freezers and other applications. They feature an air draw-through design offering air,
electric and hot gas defrost models.
• High efficiency PSC or ECM fan motors
• Coated Aluminum fins or Copper Fins
• Baked white enamel housing
• Epoxy resin high throw guards for up to 50 ft.
• Reheat kits (not UL listed)
• Factory mounted expansion valves
Optional Features
2
All-Temp²B
Nomenclature
HT A 1 8 - 41 B - A
All-Temp²B
Type of Defrost
A = Air Defrost
E = Electric Defrost
Revision Code
BTUH in hundreds
Fins per inch
Number of fans
HTPG’s optional ECM motors
bring the benefits inherent to unit bearing motor design
to the refrigeration Unit Cooler market.
3
Voltage Code
A = 115V
B = 208/1/60
C = 230/1/60
D = 208-230/1/60
E = 208-230/3/60
F = 460/1/60
• Large oil resevoir
• Totally enclosed construction
• Journal bearing machined into the cast iron endbell
• Spiral grooved shaft pump guarantees positive oil circulation
• Threaded shaft uses hubless fan blade.
Subtract 6% from total savings for medium temperature air defrost units that run 24 hours per day.
SP = 1/20 HP Shaded pole motor (Standard motors)
PSC = 1/20 HP PSC motor (Optional motors available at additional cost)
ECM = 50 Watt Electronically Commutated motor (Optional motors available at additional cost)
Energy Savings per Motor
by Changing to More Efficient Unit Cooler Motors (baseded on Energy Cost of $0.10 per kWh)
1234567891011
3.88 7.76 11.64 15.52 19.39 23.27 27.15 31.03 34.91 38.79 42.67
4.21 8.42 12.63 16.85 21.06 25.27 29.48 33.69 37.90 42.11 46.32
8.09 16.18 24.27 32.36 40.45 48.54 56.63 64.72 72.81 80.90 88.99
12111098765432
Yearly Savings per motor
$0
$20
$40
$60
$80
$100
$120
123456789101112
Months of year
Dollars Saved
SP to PSC
PSC to EC
SP to EC
Motor
Change
Std Motor
Power
Watts/Mtr
Change to
Motor
Power
Watts/Mtr
Reduced
Power
Watts/Mtr
Run
Time
Hrs/
Day
Motor
Energy
Savings
kWh/Yr
Motor
Energy
Savings
$/Yr
Reduced
Box Load
MBTU/Yr
Cond. Unit
Energy
Savings
$/Yr
Yearly
Saving $
Per
MTR
Pay
back in
Yrs
SP to PSC 120 85 35 22 281 28 959 18 47 0.6
PSC to EC 85 47 38 22 305 31 1041 20 51 2
SP to EC 120 47 73 22 586 59 2000 38 97 1.3
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