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ADTG0475
Service Manual
20 pgs2.54 Mb0

Bohn ADTG0475 Service Manual

GLYCOL UNIT COOLERS FOR SECONDARY LOOP SYSTEMS
Technical Guide
Low Velocity Center Mount • Low Prole • Medium Prole • Center Mount
BN-GUCTB
April 2010
The models featured here are specically designed for use with propylene glycol mixtures, which are environmentally-friendly. They’re UL-listed for the US and Canada and meet NSF standards.
LOW VELOCITY
CENTER MOUNT
Low air velocity helps to
maintain high humidities
and prevent product drying
and weight loss; low sound
makes a comfortable working
environment
Textured aluminum cabinet
for maximum durability
All electrical components factory wired to terminal board and identied, making it easy to eld wire the unit.
Internal panels are “isolated” which provides for quiet unit operation
prole series makes it ideal
headroom and more product
Textured aluminum cabinet design features front access panels on each side for easy
All warm-uid defrost models have electric drain pan heaters
LOW PROFILE MEDIUM PROFILE CENTER MOUNT
CABINET
Minimal height of the low
Compact center-ceiling
mount design allows for
shelving and storge of
product around walls.
Textured aluminum
cabinet for maximum
for low ceiling coolers,
allowing for maximum
storage
access to electrical and
refrigeration components
HEATERS AND COIL
Heavy-duty design is ideal
for larger walk-in coolers
and freezers
Textured aluminum
cabinet for maximum
durability
durability
All warm-uid defrost models have heater/fan control factory set and wired
All electric defrost models include defrost termination thermostats
Wire fan guards with PVC
coating are standard and provide added durability
Coils are dehydrated and sealed at the factory
Sweat connections to reduce potential for leaks
Vent and drain ttings for proper charging of system
GUARDS AND MOTORS
Featuring plastic guards and
a motor mount design that
is optimized to minimize
vibration
Motors plug into wiring harness for easier servicing
Standard molded fan guards
provide excellent air throw
(optional wire fan guard for
diused air pattern)
Wire fan guards with
PVC coating are
standard and provide
added durability
©2007, Heatcraft Refrigeration Products LLC
2
LOW VELOCITY
CENTER MOUNT
Double drain pan prevents
drain pan sweating
Energy-ecient PSC motors
(115/1/60 or 208-230/1/60)
575 volt units are not
available
LOW PROFILE MEDIUM PROFILE CENTER MOUNT
DRAIN PAN
Optimized drain tting
position
Front hinged drain pan
for easy access
OPTIONS
Energy-ecient PSC motors
(115/1/60, 208-230/1/60)
(TEAO motors are standard
on 115V and special order
on 230V and 460V)
PSC motors are
standard
(TEAO motors are
special order on 230V
and 460V)
Optional Energy-Ecient EC Motors
(115/1/60 or 208-230/1/60)
575 volt units are not
available
575 volt units available
Available in stainless steel cabinets and/or drain pan
Copper n or coil coating
Shipped loose shut-o and balance valves
Double drain pan prevents
drain pan sweating
Energy-ecient PSC motors
(115/1/60 or 208-230/1/60)
575 volt units are not
available
Factory mounted shut-o and balance valves (custom)
NOMENCLATURE
NOMENCLATURE
ADT G 0400 B K
Model Series:
ADT = Low Prole Air Defrost HGT = Low Prole Warm Fluid Defrost LET = Low Prole Electric Defrost BMA = Medium Prole Air Defrost WKA = Low Velocity Air Defrost WKG = Low Velocity Warm Fluid Defrost WKE = Low Velocity Electric Defrost SMA = Center Mount Air Defrost
Glycol
NOTES: ITD = Room air temperature - Entering uid temperature
BTUH/ITD
Electrical Code: A = 115/1/60 B = 208-230/1/60 M = 460/1/60 L = 575/1/60*
Design Revision
(Varies depending
on model series)
3
LOW VELOCITY CENTER MOUNT CAPACITIES
WKAG/WKGG/WKEG Models with Shaded Pole Motors
Fan Data
Model
WKAG0330 330 1 725 1/15 2.1 , 116 1.1 , 122 --- --- ---
WKAG0425 425 1 730 1/15 2.1 , 116 1.1 , 122 --- --- ---
WKAG0700 700 2 1450 1/15 4.2 , 232 2.2 , 244 --- --- ---
WKAG0875 875 2 1470 1/15 4.2 , 232 2.2 , 244 --- --- ---
WKAG0975 975 2 1470 1/15 4.2 , 232 2.2 , 244 --- --- ---
WKAG1025 1025 3 2130 1/15 6.3 , 348 3.3 , 366 --- --- ---
WKAG1225 1225 3 2130 1/15 6.3 , 348 3.3 , 366 --- --- ---
WKAG1450 1450 4 2840 1/15 8.4 , 464 4.4 , 488 --- --- ---
WKAG1650 1650 5 3500 1/15 10.5 , 580 5.5 , 610 --- --- ---
WKGG0700 700 2 1450 1/15 4.2 , 232 2.2 , 244 350 3 1.5
WKGG0875 875 2 1470 1/15 4.2 , 232 2.2 , 244 500 4.4 2.2
WKGG0975 975 2 1470 1/15 4.2 , 232 2.2 , 244 500 4.4 2.2
WKGG1025 1025 3 2130 1/15 6.3 , 348 3.3 , 366 500 4.4 2.2
WKGG1225 1225 3 2130 1/15 6.3 , 348 3.3 , 366 500 4.4 2.2
WKGG1450 1450 4 2840 1/15 8.4 , 464 4.4 , 488 650 5.7 2.8
WKGG1650 1650 5 3500 1/15 10.5 , 580 5.5 , 610 875 7.6 3.8
WKEG0330 330 1 725 1/15 --- 1.1, 122 2000 --- 8.7
WKEG0425 425 1 730 1/15 --- 1.1, 122 2400 --- 10.5
WKEG0700 700 2 1450 1/15 --- 2.2, 244 2800 --- 12.2
WKEG0875 875 2 1470 1/15 --- 2.2, 244 4000 --- 17.4
WKEG0975 975 2 1470 1/15 --- 2.2, 244 4000 --- 17.4
WKEG1025 1025 3 2130 1/15 --- 3.3, 366 4000 --- 17.4
WKEG1225 1225 3 2130 1/15 --- 3.3, 366 5200 --- 22.6
WKEG1450 1450 4 2840 1/15 --- 4.4, 488 5200 --- 22.6
WKEG1650 1650 5 3500 1/15 --- 5.5, 610 7000 --- 30.4
Capacity
BTUH/ºITD*
No. CFM
HP
Fan Motor Data
(Total Amps/Watts)
Shaded Pole+
115/1/60
208-230/1/60
A , W
A , W
Watts
Defrost Heaters
115/1/60
208-230/1/60
Amps
Amps
* Initial temperature dierence (ITD) is (Room air temperature - Entering uid temperature) Multiply the reference capacity by the ITD to get the reference capacity
+ Open drip-proof (ODP) motors
4
LOW VELOCITY CENTER MOUNT CAPACITIES CONTINUED
WKAG/WKGG/WKEG Models with PSC Motors
Fan Data
Model
WKAG0330
WKAG0425
WKAG0700
WKAG0875
WKAG0975
WKAG1025 1025 3 2130 1/15 2.7 , 246 1.35 , 273 --- --- ---
WKAG1225 1225 3 2130 1/15 2.7 , 246 1.35 , 273 --- --- ---
WKAG1450 1450 4 2840 1/15 3.6 , 328 1.8 , 364 --- --- ---
WKAG1650 1650 5 3500 1/15 4.5 , 410 2.25 , 455 --- --- ---
WKGG0700 700 2 1450 1/15 1.8 , 164 0.9 , 182 350 3 1.5
WKGG0875 875 2 1470 1/15 1.8 , 164 0.9 , 182 500 4.4 2.2
WKGG0975 975 2 1470 1/15 1.8 , 164 0.9 , 182 500 4.4 2.2
WKGG1025 1025 3 2130 1/15 2.7 , 246 1.35 , 273 500 4.4 2.2
WKGG1225
WKGG1450
WKGG1650
WKEG0330
WKEG0425
WKEG0700
WKEG0875 875 2 1470 1/15 --- 1.0, 180 4000 --- 17.4
WKEG0975 975 2 1470 1/15 --- 1.0, 180 4000 --- 17.4
WKEG1025 1025 3 2130 1/15 --- 1.5, 270 4000 --- 17.4
WKEG1225 1225 3 2130 1/15 --- 2.0, 360 5200 --- 22.6
WKEG1450 1450 4 2840 1/15 --- 2.0, 360 5200 --- 22.6
WKEG1650
Capacity
BTUH/ºITD*
330 1 725
425 1 730
700 2 1450
875 2 1470
975 2 1470
1225 3 2130
1450 4 2840
1650 5 3500
330 1 725
425 1 730
700 2 1450
1650 5 3500
No. CFM
HP
1/15
1/15
1/15
1/15
1/15
1/15
1/15
1/15
1/15
1/15
1/15
1/15
Fan Motor Data
(Total Amps/Watts)
Defrost Heaters
PSC Motor Data+
115/1/60
A , W
0.9 , 82 0.45 , 91 --- --- ---
0.9 , 82 0.45 , 91 --- --- ---
1.8 , 164 0.9 , 182 --- --- ---
1.8 , 164 0.9 , 182 --- --- ---
1.8 , 164 0.9 , 182 --- --- ---
2.7 , 246 1.35 , 273 500 4.4 2.2
3.6 , 328 1.8 , 364 650 5.7 2.8
4.5 , 410 2.25 , 455 875 7.6 3.8
--- 0.5, 90 2000 --- 8.7
--- 0.5, 90 2400 --- 10.5
--- 1.0, 180 2800 --- 12.2
--- 2.5, 450 7000 --- 30.4
208-230/1/60
A , W
Watts
115/1/60
Amps
208-230/1/60
Amps
* Initial temperature dierence (ITD) is (Room air temperature - Entering uid temperature) Multiply the reference capacity by the ITD to get the reference capacity + Open drip-proof (ODP) motors
5
LOW VELOCITY CENTER MOUNT CAPACITIES CONTINUED
WKAG/WKGG/WKEG Models with EC Motors
Fan Data
Model
WKAG0330
WKAG0425
WKAG0700
WKAG0875
WKAG0975
WKAG1025 1025 3 2130 1/15 2.7 , 165 1.5 , 165 --- --- ---
WKAG1225 1225 3 2130 1/15 3.6 , 220 2, 220 --- --- ---
WKAG1450 1450 4 2840 1/15 3.6 , 220 2, 220 --- --- ---
WKAG1650 1650 5 3500 1/15 4.5 , 275 2.5 , 275 --- --- ---
WKGG0700 700 2 1450 1/15 1.8 , 110 1 , 110 350 3 1.5
WKGG0875 875 2 1470 1/15 1.8 , 110 1 , 110 500 4.4 2.2
WKGG0975 975 2 1470 1/15 1.8 , 110 1 , 110 500 4.4 2.2
WKGG1025 1025 3 2130 1/15 2.7 , 165 1.5 , 165 500 4.4 2.2
WKGG1225
WKGG1450
WKGG1650 1650 5 3500 1/15 4.5 , 275 2.5 , 275 875 7.6 3.8
WKEG0330 330 1 725 1/15 --- 0.5 , 55 2000 --- 8.7
WKEG0425 425 1 730 1/15 --- 0.5, 55 2400 --- 10.5
WKEG0700 700 2 1450 1/15 --- 1.0, 110 2800 --- 12.2
WKEG0875
WKEG0975 975 2 1470 1/15 --- 1.0, 110 4000 --- 17.4
WKEG1025 1025 3 2130 1/15 --- 1.5, 165 4000 --- 17.4
WKEG1225 1225 3 2130 1/15 --- 2.0, 220 5200 --- 22.6
WKEG1450 1450 4 2840 1/15 --- 2.0, 220 5200 --- 22.6
WKEG1650 1650 5 3500 1/15 --- 2.5, 275 7000 --- 30.4
* Initial temperature dierence (ITD) is (Room air temperature - Entering uid temperature) Multiply the reference capacity by the ITD to get the reference capacity + Totally enclosed (TEAO) Motors
Capacity
BTUH/ºITD*
330 1 725
425 1 730
700 2 1450
875 2 1470
975 2 1470
1225 3 2130
1450 4 2840
875 2 1470
No. CFM
HP
1/15
1/15
1/15
1/15
1/15
1/15
1/15
1/15
Fan Motor Data
(Total Amps/Watts)
Defrost Heaters
EC Motor Data+
115/1/60
A , W
0.9 , 55 0.5 , 55 --- --- ---
0.9 , 55 0.5 , 55 --- --- ---
1.8 , 110 1 , 110 --- --- ---
1.8 , 110 1 , 110 --- --- ---
1.8 , 110 1 , 110 --- --- ---
3.6 , 220 2 , 220 500 5.7 2.2
3.6 , 220 2 , 220 650 5.7 2.8
--- 1.0, 110 4000 --- 17.4
208-230/1/60
A , W
Watts
115/1/60
Amps
208-230/1/60
Amps
6
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