Hussmann IMPACT RLT Instruction Manual

B
L
E
H
A
M
J
I
K
FGC
D
P/N 0445823_B
Merchandisers
®
RLT
with INNOVATOR Doors
Technical Data Sheet
P/N 0445823_B
NSF®Certified
April 2007
Warning:
Terminal block NOT for
case-to-case
wire connection!
Item Part # Description Wiring Item #
FAN ASSEMBLIES, AND THERMOSTATS
(A) Fan Assembly (1)
0435101 Standard Motor (Energy Efficient)
(MO.4410574)
0315470 Fan Blade (FB.0315470)
(B) 0331798 Standard Non-adjustable (2)
Defrost Thermostat (CT.4440256)
(C) Optional Adjustable
Refrigeration Thermostat (3)
(D) 0440423 Defrost Limit Thermostat (4)
(CT.4481089)
(E) 0446007 Relay Control Thermostat or (5)
Fan and Anti-sweat Heater
Thermostat (CT.4440353)
RELAYS
(F) 0342598 Control Relay (120V) (6)
(RL.4480238)
(G) 0342599 Control Relay (208V) (7)
(RL.4480237)
HEATERS
(H) Electric Defrost Heaters (208V) (8)
0461938 (1) 2 Door Models (HE.4850354)
0461939 (1) 3 Door Models (HE.4850355)
0461940 (1) 4 Door Models (HE.4850356)
0461941 (1) 5 Door Models (HE.4850357)
Item Part # (Qty) Description Wiring Item #
HEATERS (CONTINUED)
(I) Drain Pan Heater (Electric & Kool Gas) (9)
(120V)
0452974 (1) 2 Door Models (HE.4850575)
0452975 (1) 3 Door Models (HE.4850508)
0452976 (1) 4 Door Models (HE.4850509)
0452977 (1) 5 Door Models (HE.4850351)
(J) Koolgas Supplemental Heater – Plenum (10)
(120V)
0452980 (1) 2 Door Models (HE.4850576)
0452981 (1) 3 Door Models (HE.4850577)
0452982 (1) 4 Door Models (HE.4850510)
0452983 (1) 5 Door Models (HE.4850578)
(K) Koolgas Supplemental Drain Pan (11)
Heater – Bottom – (120V)
0452970 (2) 2 Door Models (HE.4850350)
0452971 (2) 3 Door Models (HE.4850506)
0452972 (2) 4 Door Models (HE.4850661)
0452973 (2) 5 Door Models (HE.4850507)
LAMPS AND BALLASTS
(L) 0430329 1 Lamp Ballast (BA.4480341)
0430330 2 Lamp Ballast (BA.4480342)
0424649 Export Ballast (BA.0424649)
(M) Standard Fluorescent Lamp
Replace with like fixtures
Refer to INNOVATOR REACH-INGLASS DOOR
INSTALLATION AND SERVICE MANUAL,P/N 0425683,
for Innovator II door and frame replacement parts.
We reserve the right to change
or revise specifications and
product design in connection
with any feature of our
products. Such changes
do not entitle the buyer to
corresponding changes,
improvements, additions or
replacements for equipment
previously sold or shipped.
Note: Revision B moved Items B and D on Page 1 and added Aftermarket part numbers.
©2007 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
U.S. & CANADA 1-800-922-1919 • MEXICO 1-800-522-1900 • WWW.HUSSMANN.COM

2 Dr 3 Dr 4 Dr 5 Dr
General
(A) Case Length (without ends or partitions) 62 (1575) 92 1/2 (2350) 122 7/8 (3121) 153 3/8 (3896)
Maximum outside dimension of case back to front 42 1/8 (1070) 42 1/8 (1070) 42 1/8 (1070) 42 1/8 (1070)
(Includes bumper)
Back of case to rear of splashguard 39 3/8 (1000) 39
3/8 (1000) 39 3/8 (1000) 39 3/8 (1000)
Width of Skidrail 4 1/2 (114) 4 1/2 (114) 4 1/2 (114) 4 1/2 (114)
Width of Bottom Front Support 6 (152) 6 (152) 6 (152) 6 (152)
Stub-up area between front skidrail and splashguard 6 3/8 (1000) 6 3/8 (1000) 6 3/8 (1000) 6 3/8 (1000)
Electrical Service
Left hand end of case to the center of nearest knockout 2 3/4 (70) 2 3/4 (70) 2 3/4 (70) 2 3/4 (70)
(B) Right hand end of case to the center of center knockout 56 7/8(1444) 87 3/8 (2219) 117 3/4 (2991) 148 1/8 (3764)
Back outside of case to center of knockout 34 1/2 (876) 34 1/2 (876) 34 1/2 (876) 34 1/2 (876)
Raceway Length 62 (1575) 62 (1575) 62 (1575) 62 (1575)
*NOTE: Electrical Field Wiring Connection Point is at terminal.
Waste Outlet
(C) Right end of case to center of waste outlet 23 3/4 (603) 54 1/4 (1378) 46 1/4 (1175) 76 5/8 (1946)
Back outside of case to center of waste outlet 34 1/2 (876) 34 1/2 (876) 34 1/2 (876) 34 1/2 (876)
Water Seal
Edge of water seal to center of waste outlet 11 (279) 11 (279) 11 (279) 11 (279)
Outside diameter of drip piping 1 1/4 (32) 1 1/4 (32) 1 1/4 (32) 1 1/4 (32)
** NOTE: Field installed water seal outlets, tees, and connectors are shipped with case.
Refrigeration Outlet
(D) Righthand end of case to center of righthand
refrigeration outlet 7 1/4 (184) 7 1/4 (184) 7 1/4 (184) 7 1/4 (184)
Back outside of case to center of refrigeration outlet 5 3/8 (138) 5 3/8 (138) 5 3/8 (138) 5 3/8 (138)
Outside bottom front supports from end of case 6 3/4(170) 6 3/4(170) 6 3/4(170) 6 3/4(170)
Center bottom front support from Centerline 24 (610) 24 (610) 24 (610) 24 (610)
Distance between Center and Outside supports will vary.
Top piping is standard in the RLT case.
RLT with Innovator Doors Technical Data Sheet
2 of 6 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Dimensions shown as inches & (mm).
08-2003
D
5 3/8
(142)
Front
6 (152)
(see note *) Water Seal
(see note **)
34
(860)
32
(813)
42 1/8
(1070)
Refrigeration
Outlet
A
B
C
Bottom Front
Support
Waste Outlet
Relay & Terminal
Block Location
Skid/External Base
Tall Reach-In
2, 3, 4, & 5 Door
Engineering
Plan Views
48
(1219)
34 1/2
(876)
62
(1575)
Electrical Wireway
Dimensions shown as inches & (mm).

3 of 6P/N 0445823_B
Impact RLT
With INNOVATOR Doors
Frozen Food & Ice Cream
REFRIGERATION DATA
Note: This data is based on store temperature
and humidity that does not exceed 75°F and
55% R.H.
FF IC
Discharge Air (°F) –5 –12
Evaporator (°F) –11 –19
Unit Sizing (°F) –14 –22
Btu/hr/Door FF IC
Parallel 1355 1430
Conventional 1380 1460
DEFROST DATA
FF IC
Frequency (hr) 24 24
Defrost Water (lb/Dr/day) 1.2 1.3
(± 15% based on case configuration and
product loading.)
ELECTRIC FF IC
Temp Term (°F) 54°54°
Failsafe (minutes) 48 48
GAS
Duration (minutes) 22 22
OFFTIME Not Recommended
CONVENTIONAL CONTROLS
Low Pressure Backup Control
FF IC
CI/CO (Temp °F)* –18°/ –34° –26°/ –45°
Indoor Unit Only, Pressure Defrost
Termination (Temp °F)*
Not Recommended
*Use a Temperature Pressure Chart to
determine PSIG conversions.
PHYSICAL DATA
Drip Pipe (in.) 1 1/4
Liquid Line (in.) 3/8
Suction Line (in.) 7/8
Estimated Charge (lb)**
2 Dr 3.2
3 Dr 4.7
4 Dr 6.3
5 Dr 8.1
**This is an average for all refrigerant types.
Actual refrigerant charge may vary by
approximately half a pound.
Length Added to Lineup by each
Standard End (in.) 2
Optional End with Window (in.) 1 1/2
Optional Partition (in.) 1 1/2
32 (813)
5 3/8(138)
RLT
FAN
C
O
I
L
30 3/4(780)
34 1/2(876)
39 (991)
42 1/8(1070)
20
(508)
25 7/8
(657)
22
(559)
63 5/8(1618)
89
(2261)
85 1/2
(2172)
72 3/4
(1850)
Frame
34 (864)
7 1/8
(180)
6 1/4
(159)
Dimensions shown as inches & (mm).
Tall Reach-in 2, 3, 4 and 5 Door Models
NSF Certification
These merchandisers are manufactured to meet ANSI /National
Sanitation Foundation (NSF®) Standard #7 requirements.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM

RLT with Innovator Doors Technical Data Sheet
4 of 6 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Electrical Data
2 Dr 3 Dr 4 Dr 5 Dr
Number of Fans – 25W 2345
Amperes Watts
Merchandiser 2 Dr 3 Dr 4 Dr 5 Dr 2 Dr 3 Dr 4 Dr 5 Dr
Fans
Standard (Energy Efficient) 1.65 2.50 3.30 4.10 125 188 250 313
(Export: 220V 50 hz) 0.91 1.38 1.82 2.26 125 188 250 313
Anti-sweat Heaters
Doors 1.35 2.03 2.70 3.38 162 243 324 405
(Export: 220V 50 hz) 0.74 1.10 1.47 1.84 162 243 324 405
Frames 0.96 1.43 1.92 2.40 115 172 230 288
(Export: 220V 50 hz) 0.52 0.78 1.05 1.31 115 172 230 288
Minimum Circuit Ampacity
With Electric Defrost 4.17 6.17 8.13 10.09
With Koolgas Defrost 5.37 8.28 11.18 14.08
Maximum Over Current Protection 20 20 20 20
(Export: 220V 50 hz) 20 20 20 20
Defrost
Drain Heaters (120V) (KOOLGAS OR ELECTRIC)1.00 1.50 2.00 2.50 120 180 240 300
(Export: 220V 50 hz) 0.50 0.75 1.00 1.25 110 165 220 275
120V Koolgas Supplemental Heaters 4.30 6.78 9.18 11.58 516 814 1102 1390
(Export: 220V 50 hz) 2.35 3.70 5.01 6.32 472 744 1007 1270
208V Electric Defrost 7.7 11.5 15.4 19.2 1600 2400 3200 4000
(Export: 220V 50 hz) 6.7 10.0 13.3 16.6 1465 2200 2930 3660
Standard Vertical Lighting 2 Dr 3 Dr 4 Dr 5 Dr 2 Dr 3 Dr 4 Dr 5 Dr
Innovator* Doors (120V) 1.50 2.00 2.50 3.00 180 240 300 360
(Export: 220V 50 hz) 0.84 1.12 1.40 1.68 185 246 308 370
*Innovator or Innovator II
Impact RLT
With INNOVATOR Doors
Frozen Food & Ice Cream
Hussmann recommends against frame heater cycling with
Innovator doors to prevent door seals from freezing to the
frames and tearing.

Electric Defrost Sequence - Low Temperature
1. Power from the defrost contactor energizes Defrost Heaters and 208V Evaporator Fan Relay Coil (7). Relay Contacts open the fan
circuit and energizes the Drain Pan Heater.
2. If the Defrost Heater raises internal air temperature above 90°F, the Defrost Limit Thermostat (4) will open.
3. Temperature rise of the evaporator closes the Relay Control Thermostat (5) at about 35°F, energizing 120V A.S. Relay Coils (6).
These relays’ contacts open the Frame and Door Heater Circuits, and prevent the Fan Circuit from energizing upon defrost
termination.
4. When Defrost Termination Thermostat ends defrost period, the defrost contactor opens the Defrost Heater and Evaporator Fan Relay
Coil Circuits. The Drain Pan Heater goes off.
5. Temperature fall of the evaporator opens the Relay Control Thermostat (5) at about 20°F, de-energizing 120V A.S. Relay Coils (6).
A.S. Relay Contacts close the Frame and Door Heater Circuits, and Fan Circuit.
5 of 6P/N 0445823_B HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A. • WWW.HUSSMANN.COM
C
C
Defrost Termination
Thermostat
Refrigeration
Thermostat
(Optional)
Pink
2
3
}To
Condensing
Unit
A.S. Relay
Coil
BR
Evaporator Fans 1
Fan Relay
COM
N.O.
Rod Heater (Drain) 9
Y
Y
N.C.
7
7
1
3W
B
Relay Control
25
Fan Relay
B
56
B
BCOM N.C.
6
A.S. Relay
24
Door A.S. Heaters
Frame A.S. Heaters
21
22
2P
P
2P
P
12
11
10
120V POWER
16
13
OR L
120V POWER
OR
Switch
NEUTRAL
17 20
208V
Evaporator Fan
Relay Coil
13
RR
Defrost Heater
R
5
4
BB
7
R
N.C.
7
8
8
Defrost Limit
208V 208V
Terminal Blocks in Raceway
Low Temperature with
Electric Defrost
20 21 22 26 17
12
3456 781011 1413 16
LIGHTS
(120V)
DEFROST HEATERS
(208V)
CIRCLED NUMBERS = PARTS LIST ITEM NUMBERS
THESE ARE MARKER COLORS (WIRE MAY VARY.)
CAUTION: When multiplexing
merchandisers equipped with defrost
heaters, if branch circuit overcurrent
protection is larger than the
individual merchandiser’s defrost
circuit load, then additional
supplemental overcurrent protection
may be required per NEC Articles
210 and 240.
R = Red P = Purple 2P = Purple (2 Bands) DB = Dark Blue B = Black
BR =Brown Y =Yellow OR = Orange W = White
Fan and Heater Circuits - Electric Defrost (standard)
Low Temperature
24 2512
FANS & A.S.
(120V)
LIGHTS
(Neutral)
FANS & A.S. (Neutral)
Permanent Internal
Jumpers
R P WBRORRRRBBRRBP
2P BB ORB2PY
14
26
C.O.R.
1
2
3
4
6O.O.R.
Removable External
Jumpers
DB C.O.R.
2
Defrost Termination
Thermostat
FIELD WIRED
DB
NEUTRAL
Dark Blue
Refer to Innovator Reach-In
Glass Door, Installation and
Service manual, P/N 0425683,
for Innovator door and frame
replacement parts.
C
6
120V
Fan Relay
N.C.
120V Fan
Relay Coil
6

RLT with Innovator Doors Technical Data Sheet
6 of 6 HUSSMANN CORPORATION, Bridgeton, MO 63044-2483 U.S.A.
Gas Defrost Sequence - Low Temperature
1. Defrost vapor enters evaporator causing a rise in temperature. At about 35°F the Control Relay Thermostat (5) closes
the Fan Relay Coil and Control Relay Coil (6) circuit. The Coil opens the Fan, Door Heater, and Frame Heater circuits,
while energizing the Drain Pan, Bottom, and Plenum Heaters (9), (10) and (11).
2. If the Drain Pan Heater (9) raises internal air temperature above 90°F, the Heater Limit Thermostat (4) will open.
3. When the defrost timer ends a defrost period, the evaporator temperature will start to fall. At about 20°F, the Control
Relay Thermostat will open, de-energizing the Control Relay Coil and Fan Relay Coil (7). Control and Fan Relay’s will
open the Drain Pan Heater circuits, and will close the Fan, Door Heater, and Frame Heater circuits.
9
Permanent Internal
Jumpers
A.S. Relay
Coil
BR
Evaporator Fans 1
Fan Relay
COM
N.O. Rod Heater (Drain)
Y
Y
N.C.
6
6
1
3W
B
Relay Control
c
25
Fan Relay
F
B
56
B
BCOM N.C.
6
A.S. Relay
24
Door A.S. Heaters
Frame A.S. Heaters
22
2P
2P
P
12
10
120V POWER
13
26
C.O.R.
P
OR L
120V POWER
OR
Switch
NEUTRAL
17 20
Terminal Blocks in Raceway
Low Temperature with
Gas Defrost
20 21 22 26 17
10 11 1413 16
LIGHTS
(120V)
Refrigeration
Thermostat
(Optional)
Pink
3
}To
Condensing
Unit
CIRCLED NUMBERS = PARTS LIST ITEM NUMBERS
THESE ARE MARKER COLORS (WIRE MAY VARY.)
R = Red P = Purple 2P = Purple (2 Bands) DB = Dark Blue B = Black
BR =Brown Y =Yellow OR = Orange W = White
24 2512
FANS & A.S.
(120V)
LIGHTS
(Neutral) FANS & A.S. (Neutral)
PWBRORBP
2P BB ORB2PY
Removable External
Jumpers
Fan and Heater Circuits - Gas Defrost (optional)
Low Temperature
16
6
Fan Relay
Coil
11
c
Defrost Limit 4
O.O.R.
14
21
NEUTRAL
Refer to Innovator Reach-In
Glass Door, Installation and
Service manual, P/N 0425683,
for Innovator door and frame
replacement parts.
10
11
Drain Pan Heaters – Bottom
Koolgas Supplemental
Heater – Plenum