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Unit Cooler
Publication No. 100.15
November, 2008
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
3050 Enterprise St. • P.O. Box 1030 • Brea, CA 92822-1030 • Tel: (714) 529-1935 • Fax: (714) 529-
Small to Medium
Walk - Ins
Coolers & Freezer
Applications
Visit us on the Web: www.russellcoil.com
7203

Features
KIT NO.
TIMER
AUXILIARY
SWITCH
BLOCK-OUT
RELAY
DEFROST
CONTACTOR
FAN
CONTACTOR
SEQUENCING
RELAY
ED10-230/1 1 — 1-30A — — —
ED11-230/3 1 1 — 1-30A — —
ED12-460/3 1 1 — 1-30A 1-25A —
1
ED210-230/1
1 — 1-30A — — —
1
ED213-230/1
1 1 — 1-50A — —
1
ED213-230/3
1 1 — 1-50A — —
ED20-230/1 1 — 1-30A — — 2
ED22-460/3 1 1 — 2-15A 1-25A 2
ED23-230/1 1 1 — 2-25A — 2
ED23-230/3 1 1 — 2-25A — 2
ED30-230/1 1 — 1-30A — — 3
ED32-460/3 1 1 — 3-10A 1-25A 3
ED33-230/1 1 1 — 3-16A — 3
ED34-460/3 1 1 — 3-16A 1-25A 3
ED35-230/1 1 1 — 3-33A — 3
ED35-230/3 1 1 — 3-33A — 3
The Russell 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.
Si z e s
There are 35 sizes available with 3,700 to 39,000 BTUH
t a 10° TD ranging from 740 to 4,980 cfm. One through
a
six fan models are available.
Ho u s in g
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.
Co i l
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.
Mo t o rs
Shaded Pole 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 EC motors are available in 115V and 230V.
Fa n s
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.
Ai r D e f ro st
All models with the prefix “AA” are designed for use in coolers of 35°F and warmer. Complete air defrost systems for
off-cycle or timed air defrost are available from Russell.
• High efficiency PSC or ECM fan motors
• Coated Aluminum fins or Copper Fins
• Baked white enamel housing
Optional Features
El e c tr ical
Available in 115V, 208/230V, and 460V (see pages 4 & 5). All
omponents are factory wired to convenient screw-type
c
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.
El e c tr ic Defr o s t
Available on all models with the prefix “AE”. 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
from Russell.
Ho t G a s D e fr ost
Two types available - Re-Evap models with the prefix “AH”
and reverse cycle with the prefix “AG”. All models include a
fixed DTFD factory wired and a hot gas drain pan circuit to
defrost the drain pan. On all Hot Gas models, the drain fitting is located on the left-hand rear of the unit when facing
the fan guards. Re-evap models include a Heat
Exchanger-Re-Evaporator shipped together with the unit for
field installation. Complete Re-Evap Refrigeration Systems
are available from Russell. Contact factory for piping
information.
• Epoxy resin high throw guards for up to 50 ft.
• Reheat kits (not UL listed)
• Factory mounted expansion valves
2 7

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RUSSELLʼs EC motors
bring the benefits inherent to unit bearing motor design
to the refrigeration Unit Cooler market.
• 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.
Energy Savings per Motor
by Changing to More Efficient Unit Cooler Motors (based on Energy Cost of $0.10 per kWh)
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)
EC = 50 Watt Electronically Commutated motor (Optional motors available at additional cost)
Nomenclature
AA18 -41 B-A- E
All-Temp²B
Type of Defrost
Motor Type
S = Shaded Pole
E = ECM
P = PSC
A = Air Defrost
E = Electric Defrost
H = Hot Gas Re-evap
G = Hot Gas Rev. Cycle
Number of fans
Fins per inch
Revision Code
BTUH in hundreds
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

Air Defrost / S
10° TD 12° TD 115V 230V 460V 115V 230V 115V 230V
AA18-41B 4,100 4,900 800 1.9 1.0 0.54 1.0 0.5 0.9 0.45
AA18-53B 5,300 6,400 770 1.9 1.0 0.54 1.0 0.5 0.9 0.45
A
A18-66B 6,600 7,900 740 1.9 1.0 0.54 1.0 0.5 0.9 0.45
AA28-76B 7,600 9,100 1,460 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA28-97B 9,700 11,600 1,420 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA28-106B 10,600 12,700 1,540 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA28-122B 12,200 14,600 1,380 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA28-134B 13,400 16,100 1,480 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA38-160B 16,000 19,200 2,310 5.7 3.0 1.6 3.0 1.5 2.7 1.35
AA38-195B 19,500 23,400 2,220 5.7 3.0 1.6 3.0 1.5 2.7 1.35
AA48-212B 21,200 25,400 3,080 7.6 4.0 2.2 4.0 2.0 3.6 1.80
AA48-264B 26,400 31,700 2,960 7.6 4.0 2.2 4.0 2.0 3.6 1.80
AA58-275B 27,500 33,000 3,850 9.5 5.0 2.7 5.0 2.5 4.5 2.25
AA68-318B 31,800 38,200 4,620 11.4 6.0 3.2 6.0 3.0 5.4 2.70
AA68-390B 39,000 46,800 4,440 11.4 6.0 3.2 6.0 3.0 5.4 2.70
AA16-39B 3,900 4,700 830 1.9 1.0 0.54 1.0 0.5 0.9 0.45
AA16-48B 4,800 5,800 800 1.9 1.0 0.54 1.0 0.5 0.9 0.45
AA16-58B 5,800 7,000 780 1.9 1.0 0.54 1.0 0.5 0.9 0.45
AA26-70B 7,000 8,400 1,540 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA26-87B 8,700 10,400 1,500 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA26-115B 11,500 13,800 1,560 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA36-145B 14,500 17,400 2,400 5.7 3.0 1.6 3.0 1.5 2.7 1.35
AA36-170B 17,000 20,400 2,340 5.7 3.0 1.6 3.0 1.5 2.7 1.35
AA46-192B 19,200 23,000 3,200 7.6 4.0 2.2 4.0 2.0 3.6 1.80
AA46-230B 23,000 27,600 3,120 7.6 4.0 2.2 4.0 2.0 3.6 1.80
AA56-245B 24,500 29,400 4,000 9.5 5.0 2.7 5.0 2.5 4.5 2.25
AA66-295B 29,500 35,400 4,800 11.4 6.0 3.2 6.0 3.0 5.4 2.70
AA66-345B 34,500 41,400 4,680 11.4 6.0 3.2 6.0 3.0 5.4 2.70
AA14-42B 4,200 5,000 830 1.9 1.0 0.54 1.0 0.5 0.9 0.45
AA24-84B 8,400 10,100 1,660 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA24-105B 10,500 12,600 1,620 3.8 2.0 1.1 2.0 1.0 1.8 0.90
AA34-130B 13,000 15,600 2,490 5.7 3.0 1.6 3.0 1.5 2.7 1.35
AA44-170B 17,000 20,400 3,320 7.6 4.0 2.2 4.0 2.0 3.6 1.80
AA54-215B 21,500 25,800 4,150 9.5 5.0 2.7 5.0 2.5 4.5 2.25
AA64-255B 25,500 30,600 4,980 11.4 6.0 3.2 6.0 3.0 5.4 2.70
Total Fan Motor AMPS - 1 Phase
-
30° -20° -10° +20° 230V 460V 230V 230V 1 PH 3 PH 1 PH
AE16-36B 3,400 3,600 3,700 3,900 830 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE16-41B 3,900 4,100 4,300 4,800 800 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE16-46B 4,400 4,600 4,800 5,800 780 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE26-60B 5,700 6,000 6,200 7,000 1,540 2.0 1.1 1.0 0.90 7.0 6.0 3.5 1,600
AE26-75B 7,100 7,500 7,800 8,700 1,500 2.0 1.1 1.0 0.90 7.0 6.0 3.5 1,600
A
E26-92B 8,700 9,200 9,600 11,500 1,560 2.0 1.1 1.0 0.90 8.7 7.5 4.4 2,000
AE36-120B 11,400 12,000 12,500 14,500 2,400 3.0 1.6 1.5 1.35 13.0 11.3 6.4 3,000
AE36-140B 13,300 14,000 14,600 17,000 2,340 3.0 1.6 1.5 1.35 13.0 11.3 6.4 3,000
AE46-164B 15,000 16,400 17,100 19,200 3,200 4.0 2.2 2.0 1.80 17.4 15.1 8.7 4,000
AE46-185B 17,600 18,500 19,200 23,000 3,120 4.0 2.2 2.0 1.80 17.4 15.1 8.7 4,000
AE56-210B 20,000 21,000 21,800 24,500 4,000 5.0 2.7 2.5 2.25 — 18.8 10.9 5,000
AE66-245B 23,300 24,500 25,500 29,500 4,800 6.0 3.2 3.0 2.70 — 22.6 13.0 6,000
AE66-280B 26,600 28,000 29,100 34,500 4,680 6.0 3.2 3.0 2.70 — 22.6 13.0 6,000
AE14-37B 3,500 3,700 3,800 4,200 830 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE24-72B 6,800 7,200 7,500 8,400 1,660 2.0 1.1 1.0 0.90 8.7 7.5 4.4 2,000
AE24-85B 8,100 8,500 8,800 10,500 1,620 2.0 1.1 1.0 0.90 8.7 7.5 4.4 2,000
AE34-105B 10,000 10,500 10,900 13,000 2,490 3.0 1.6 1.5 1.35 13.0 11.3 6.4 3,000
AE44-140B 13,300 14,000 14,600 17,000 3,320 4.0 2.2 2.0 1.80 17.4 15.1 8.7 4,000
AE54-180B 17,100 18,000 18,700 21,500 4,150 5.0 2.7 2.5 2.25 — 18.8 10.9 5,000
AE64-215B 20,400 21,500 22,400 25,500 4,980 6.0 3.2 3.0 2.70 — 22.6 13.0 6,000
Re-Evap Rev. Cycle -30° -20° -10° +20° 115V 230V 460V 115V 230V 115V 230V
AH16-36B AG16-36B 3,400 3,600 3,700 3,900 830 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH16-41B AG16-41B 3,900 4,100 4,300 4,800 800 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH16-46B AG16-46B 4,400 4,600 4,800 5,800 780 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH26-60B AG26-60B 5,700 6,000 6,200 7,000 1,540 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH26-75B AG26-75B 7,100 7,500 7,800 8,700 1,500 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH26-92B AG26-92B 8,700 9,200 9,600 11,500 1,560 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH36-120B AG36-120B 11,400 12,000 12,500 14,500 2,400 5.7 3.0 1.6 3.0 1.50 2.7 1.35 3A
AH36-140B AG36-140B 13,300 14,000 14,600 17,000 2,340 5.7 3.0 1.6 3.0 1.50 2.7 1.35 3A
AH46-164B AG46-164B 15,000 16,400 17,100 19,200 3,200 7.6 4.0 2.2 4.0 2.0 3.6 1.80 3A
AH46-185B AG46-185B 17,600 18,500 19,200 23,000 3,120 7.6 4.0 2.2 4.0 2.0 3.6 1.80 3A
AH56-210B AG56-210B 20,000 21,000 21,800 24,500 4,000 9.5 5.0 2.7 5.0 2.50 4.5 2.25 3A
AH66-245B AG66-245B 23,300 24,500 25,500 29,500 4,800 11.4 6.0 3.2 6.0 3.0 5.4 2.70 4A
AH66-280B AG66-280B 26,600 28,000 29,100 34,500 4,680 11.4 6.0 3.2 6.0 3.0 5.4 2.70 4A
AH14-37B AG14-37B 3,500 3,700 3,800 4,200 830 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH24-72B AG24-72B 6,800 7,200 7,500 8,400 1,660 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH24-85B AG24-85B 8,100 8,500 8,800 10,500 1,620 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH34-105B AG34-105B 10,000 10,500 10,900 13,000 2,490 3.8 3.0 1.6 3.0 1.50 2.7 1.35 2A
AH44-140B AG44-140B 13,300 14,000 14,600 17,000 3,320 7.6 4.0 2.2 4.0 2.0 3.6 1.80 3A
AH54-180B AG54-180B 17,100 18,000 18,700 21,500 4,150 9.5 5.0 2.7 5.0 2.5 4.5 2.25 3A
AH64-215B AG64-215B 20,400 21,500 22,400 25,500 4,980 11.4 6.0 3.2 6.0 3.0 5.4 2.70 3A
8
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pecifications
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(1) All fan motors are wired for single phase.
Ordering Information Required
It is vital that the information listed below is given with each evaporator order. Orders without
this information may be delayed. Evaporators with options such as solenoid and expansion
valves will not be processed until all the required information is given.
(1) Model Number
(2) Type of Motor
(3) Voltage, frequency and phase of motors
and heaters (when applicable)
(4) Refrigerant type
(5) Evaporator temperature
(6) Evaporator T.D.
4 5

Electric Defrost / Specifications
-
30° -20° -10° +20° 230V 460V 230V 230V 1 PH 3 PH 1 PH
AE16-36B 3,400 3,600 3,700 3,900 830 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE16-41B 3,900 4,100 4,300 4,800 800 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE16-46B 4,400 4,600 4,800 5,800 780 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE26-60B 5,700 6,000 6,200 7,000 1,540 2.0 1.1 1.0 0.90 7.0 6.0 3.5 1,600
AE26-75B 7,100 7,500 7,800 8,700 1,500 2.0 1.1 1.0 0.90 7.0 6.0 3.5 1,600
A
E26-92B 8,700 9,200 9,600 11,500 1,560 2.0 1.1 1.0 0.90 8.7 7.5 4.4 2,000
AE36-120B 11,400 12,000 12,500 14,500 2,400 3.0 1.6 1.5 1.35 13.0 11.3 6.4 3,000
AE36-140B 13,300 14,000 14,600 17,000 2,340 3.0 1.6 1.5 1.35 13.0 11.3 6.4 3,000
AE46-164B 15,000 16,400 17,100 19,200 3,200 4.0 2.2 2.0 1.80 17.4 15.1 8.7 4,000
AE46-185B 17,600 18,500 19,200 23,000 3,120 4.0 2.2 2.0 1.80 17.4 15.1 8.7 4,000
AE56-210B 20,000 21,000 21,800 24,500 4,000 5.0 2.7 2.5 2.25 — 18.8 10.9 5,000
AE66-245B 23,300 24,500 25,500 29,500 4,800 6.0 3.2 3.0 2.70 — 22.6 13.0 6,000
AE66-280B 26,600 28,000 29,100 34,500 4,680 6.0 3.2 3.0 2.70 — 22.6 13.0 6,000
AE14-37B 3,500 3,700 3,800 4,200 830 1.0 0.54 0.5 0.45 4.4 2.6 2.2 1,000
AE24-72B 6,800 7,200 7,500 8,400 1,660 2.0 1.1 1.0 0.90 8.7 7.5 4.4 2,000
AE24-85B 8,100 8,500 8,800 10,500 1,620 2.0 1.1 1.0 0.90 8.7 7.5 4.4 2,000
AE34-105B 10,000 10,500 10,900 13,000 2,490 3.0 1.6 1.5 1.35 13.0 11.3 6.4 3,000
AE44-140B 13,300 14,000 14,600 17,000 3,320 4.0 2.2 2.0 1.80 17.4 15.1 8.7 4,000
AE54-180B 17,100 18,000 18,700 21,500 4,150 5.0 2.7 2.5 2.25 — 18.8 10.9 5,000
AE64-215B 20,400 21,500 22,400 25,500 4,980 6.0 3.2 3.0 2.70 — 22.6 13.0 6,000
Re-Evap Rev. Cycle -30° -20° -10° +20° 115V 230V 460V 115V 230V 115V 230V
AH16-36B AG16-36B 3,400 3,600 3,700 3,900 830 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH16-41B AG16-41B 3,900 4,100 4,300 4,800 800 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH16-46B AG16-46B 4,400 4,600 4,800 5,800 780 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH26-60B AG26-60B 5,700 6,000 6,200 7,000 1,540 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH26-75B AG26-75B 7,100 7,500 7,800 8,700 1,500 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH26-92B AG26-92B 8,700 9,200 9,600 11,500 1,560 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH36-120B AG36-120B 11,400 12,000 12,500 14,500 2,400 5.7 3.0 1.6 3.0 1.50 2.7 1.35 3A
AH36-140B AG36-140B 13,300 14,000 14,600 17,000 2,340 5.7 3.0 1.6 3.0 1.50 2.7 1.35 3A
AH46-164B AG46-164B 15,000 16,400 17,100 19,200 3,200 7.6 4.0 2.2 4.0 2.0 3.6 1.80 3A
AH46-185B AG46-185B 17,600 18,500 19,200 23,000 3,120 7.6 4.0 2.2 4.0 2.0 3.6 1.80 3A
AH56-210B AG56-210B 20,000 21,000 21,800 24,500 4,000 9.5 5.0 2.7 5.0 2.50 4.5 2.25 3A
AH66-245B AG66-245B 23,300 24,500 25,500 29,500 4,800 11.4 6.0 3.2 6.0 3.0 5.4 2.70 4A
AH66-280B AG66-280B 26,600 28,000 29,100 34,500 4,680 11.4 6.0 3.2 6.0 3.0 5.4 2.70 4A
AH14-37B AG14-37B 3,500 3,700 3,800 4,200 830 1.9 1.0 0.54 1.0 0.50 0.9 0.45 1A
AH24-72B AG24-72B 6,800 7,200 7,500 8,400 1,660 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH24-85B AG24-85B 8,100 8,500 8,800 10,500 1,620 3.8 2.0 1.1 2.0 1.0 1.8 0.90 2A
AH34-105B AG34-105B 10,000 10,500 10,900 13,000 2,490 3.8 3.0 1.6 3.0 1.50 2.7 1.35 2A
AH44-140B AG44-140B 13,300 14,000 14,600 17,000 3,320 7.6 4.0 2.2 4.0 2.0 3.6 1.80 3A
AH54-180B AG54-180B 17,100 18,000 18,700 21,500 4,150 9.5 5.0 2.7 5.0 2.5 4.5 2.25 3A
AH64-215B AG64-215B 20,400 21,500 22,400 25,500 4,980 11.4 6.0 3.2 6.0 3.0 5.4 2.70 3A
6
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All-Temp2B
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(1) All fan motors are wired for single phase.
(2) For 208/230 volt models, heaters are wired as standard for single phase on 1 through 4 fan models. 5 and 6 fan models are
wired 3 phase. 460 Volt models are only available in single phase and are compatible with all 3 phase systems.
Hot Gas Defrost / Specifications
6
F
P
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4
F
P
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(1) All fan motors are wired for single phase operation

Physical Data
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Instal lation Notes:
(1) Install 12” away from back wall.
(2) Drain connection on AA and AE units are centered on drain pan;
and on the left end (facing air discharge) on AH and AG units.
(3) For long air throw requirements, specify high throw fan guard.
(4) Unit height at drain end of hot gas models is as follows: 1,2, and 3
fan models = 15-7/8”, 4,5, and 6 fan models = 16-1/4”.
6 3

All-Temp2B
KIT NO.
TIMER
AUXILIARY
SWITCH
BLOCK-OUT
RELAY
DEFROST
CONTACTOR
FAN
CONTACTOR
SEQUENCING
RELAY
ED10-230/1 1 — 1-30A — — —
ED11-230/3 1 1 — 1-30A — —
ED12-460/3 1 1 — 1-30A 1-25A —
1
ED210-230/1
1 — 1-30A — — —
1
ED213-230/1
1 1 — 1-50A — —
1
ED213-230/3
1 1 — 1-50A — —
ED20-230/1 1 — 1-30A — — 2
ED22-460/3 1 1 — 2-15A 1-25A 2
ED23-230/1 1 1 — 2-25A — 2
ED23-230/3 1 1 — 2-25A — 2
ED30-230/1 1 — 1-30A — — 3
ED32-460/3 1 1 — 3-10A 1-25A 3
ED33-230/1 1 1 — 3-16A — 3
ED34-460/3 1 1 — 3-16A 1-25A 3
ED35-230/1 1 1 — 3-33A — 3
ED35-230/3 1 1 — 3-33A — 3
Electric Defrost Kits
Electric defrost kits consist of components that are necessary to control the defrost cycle. The optional kits are available as a factory installed
option when ordered with a condensing unit. Not all Ed-Kits are available for all condensing unit models. The contents of each kit is described
below, along with the function of each component.
* - 1/2 through 3 HP models require ED-210 or ED-213.
Electric Defrost Kits
Timer: Initiates the defrost cycle. Also used as a over-
ride protection for defrost termination.
Auxiliary Switch: Is mounted on the compressor con-
tactor and prevents the defrost contactor from operating whenever the compressor is energized.
Block-Out Relay: Serves the same function as auxil-
iary switch. Used when defrost contactor is not
required (lower wattage single phase only).
Defrost Contactor: Carries amperage load for heaters.
Fan Contactor: Used with 460V motors or when 230V
motors are wired 3 phase.
Sequencing Relays: Provides interconnection of multi-
ple unit coolers on a single system so that each
unit cooler is allowed to individually terminate
defrost on temperature.
¹ For use with 2 evaporators , 1/2 through 3 HP R-series systems ONLY!