Hussmann IMPACT RL User manual

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Dew Point and

Humidistat Control

for Reach-In Merchandisers

Installation Instruction

Merchandisers

Model Description

Honeywell Model H409A Dew Point Control

Honeywell Model H46N-1005i Humidistat Control

GENERAL INFORMATION

Kit Application

Both of the controls shown on

Page 12 are designed for energy

conservation. They supply

power to the anti-condensate

heaters in the door only when

necessary to maintain the sur-

face temperature of the glass

doors above the dew point.

The humidistat control is non-

adjustable, factory-set to cycle

off the door anti-condensate

heaters when the store humidity

drops to the set point of 35%

relative humidity or lower. This

control carries a maximum load

of 10 Amps (see Table 1,

Amperage).

The dew point control is a

more versatile control offering

six adjustable set-points, with

a maximum setting of 40%

relative humidity. This control

carries maximum load of

16 Amps (see Table 1,

Amperage).

The capacity of these controls

may be increased by using

relays whose coils are wired

parallel with the control and the

relay contacts connected to

power supply. Refer to wiring

diagrams for detail.

For a line-up of cases, one case

is designated as the master case

with the control installed. Note

that each narrow island side is

wired separately.

All other cases in the line-up

are designated as slave cases

with a relay energized from the

control on the master case (side

of an island).

The location of either dew

point control or humidistat

control must be in an area that

reflects the store ambient con-

dition where the merchandiser

is located.

All wiring for these controls

must comply with NEC and

local regulations.

P/N 0387094A

April, 2002

P/N 0387094A

Merchandisers

2HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Dew Point/

Humidistat

Location

Refrigeration Outlet

Electrical Wireway

Bottom Front

Support

Relay & Terminal Block Location

Skid/External Base

Electrical

Field Wiring

Connection Point

Front

5-Door Shown

Control Location — Reach-in and Narrow Reach-in

Front Relay & Terminal Block Location

Front

5-Door Shown

Electrical Wireway

Bottom Front

Support

Skid/External Base

Electrical Wireway

Refrigeration Outlet

Electrical

Field Wiring

Connection Point

Dew Point/

Humidistat

Location

Dew Point/

Humidistat

Location

Rear Relay & Terminal Block Location

Control Locations — Narrow Island Reach-in

Table 1

Door heater amperages cycable by dew point or humidistat control (120 V).

Model Door Condensate Heater Amps

Anthony Innovator

RL2, RLN2, RLNI2* 2.18 1.5

RL3, RLN3, RLNI3* 3.27 2.31

RL4, RLN4, RLNI4* 4.36 3.08

RL5, RLN5, RLNI5* 5.45 3.86

*RLNI values are per side.

Dew Point and Humidistat Control

Installation Instruction

P/N 0387094A

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

Lower Right Hand of Case

Color Coded Harness

Identification

Tag

Upper Right Hand of Case

Red

Black

White

Honeywell Dew Point Control

M/N409A or

Honeywell Humidistat Control

M/NH46N

COMPONENT LOCATION FOR DEW POINT / HUMIDISTAT CONTROL

P/N 0387094A

Merchandisers

4HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

1234567810111213141617202122242526

RL Wiring Diagram for Dew Point or Humidistat Control

Fans and Anti-Condensate Heaters on Common Power Circuit.

Only Cycles Door Anti-Condensate Heater.

(Electric Defrost)

Kits FL28 and FL29

Diagrams 0423658 and 0423689

Thermostats

Rear Defrost

Front Defrost

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

C.O.R.

COM

C.O.R.

Defrost Heaters (208V)

N.O.

N.C.

The heavy lines drawn inside

the terminal blocks represent

permanent internal jumpers.

The heavy bracketed lines drawn outside

the terminal blocks represent removable

external push-in jumpers.

Defrost Limit

Relay Control

Defrost Termination

Defrost Heaters (208V)

Fans & Anti-Sweat (120V)

Lights (120V)

Lights (Neutral)

Fans & Anti-Sweat (Neutral)

Notes:

➀Dew point or Humidistat

Anti-sweat control.

➁White wire not used on

Humidistat control.

➂Field wiring for slave case

relay coil(s).

• Yellow terminals 1 through 8

are 208V Defrost Circuit.

• Terminals 1 through 3 are

internally jumpered.

• Terminals 4 and 5 are

internally jumpered.

• Terminals 6 through 8 are

internally jumpered.

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Terminals 13 and 14 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 through 24 are

jumpered with a removable

push-in jumper.

Dew Point and Humidistat Control

Installation Instruction

P/N 0387094A

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

1234567810111213141617202122242526

RL Wiring Diagram for Dew Point or Humidistat Slave Relay

Fans and Anti-Condensate Heaters on Common Power Circuit.

Only Cycles Door Anti-Condensate Heater.

(Electric Defrost)

Kit BF53

Diagrams 0423658 and 0423689

Thermostats

Rear Defrost

Front Defrost

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

C.O.R.

COM

C.O.R.

Defrost Heaters (208V)

N.O.

N.C.

The heavy lines drawn inside

the terminal blocks represent

permanent internal jumpers.

The heavy bracketed lines drawn

outside the terminal blocks represent

removable external push-in jumpers.

Defrost Limit

Relay Control

Defrost Termination

Defrost Heaters (208V)

Fans & Anti-Sweat (120V)

Lights (120V)

Lights (Neutral)

Fans & Anti-Sweat (Neutral)

Relay Spot

Dew Point /

Humidistat

120V

COM

N.O.

N.C.

Notes:

➀Field wiring from the dew

point/humidistat master case

Terminals 12 & 21.

➁Field wiring from an adjoin-

ing slave case anti-sweat relay

coil.

• Yellow terminals 1 through 8

are 208V Defrost Circuit.

• Terminals 1 through 3 are

internally jumpered.

• Terminals 4 and 5 are

internally jumpered.

• Terminals 6 through 8 are

internally jumpered.

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Terminals 13 and 14 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 through 24 are

jumpered with a removable

push-in jumper.

P/N 0387094A

Merchandisers

6HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

1234567810111213141617202122242526

RL Wiring Diagram for Dew Point or Humidistat Control

Fans and Anti-Condensate Heaters on Separate Power Circuits.

Only Cycles Door Anti-Condensate Heater.

(Electric Defrost)

Kits FL44 and FL45

Diagrams 0423665 and 0423689

Thermostats

Rear Defrost

Front Defrost

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

C.O.R.

COM

C.O.R.

Defrost Heaters (208V)

N.O.

N.C.

The heavy lines drawn inside

the terminal blocks represent

permanent internal jumpers.

The heavy bracketed lines drawn outside

the terminal blocks represent removable

external push-in jumpers.

Fans (Neutral)

Fans (120V)

Defrost Limit

Relay Control

Defrost Termination

Defrost Heaters (208V)

Lights (120V)

Lights (Neutral)

Anti-Sweat (120V)

Anti-Sweat (Neutral)

Notes:

➀Dew point or Humidistat

Anti-sweat control.

➁White wire not used on

Humidistat control.

➂Field wiring for slave case

relay coil(s).

• Yellow terminals 1 through 8

are 208V Defrost Circuit.

• Terminals 1 through 3 are

internally jumpered.

• Terminals 4 and 5 are

internally jumpered.

• Terminals 6 through 8 are

internally jumpered.

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 and 22 are

jumpered with a removable

push-in jumper.

Dew Point and Humidistat Control

Installation Instruction

P/N 0387094A

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

1234567810111213141617202122242526

agram

nt or

idi

stat

ave

Fans and Anti-Condensate Heaters on Separate Power Circuits.

Only Cycles Door Anti-Condensate Heater.

(Electric Defrost)

Kit FL43

Diagrams 0423665 and 0423689

Thermostats

Rear Defrost

Front Defrost

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

C.O.R.

COM

C.O.R.

Defrost Heaters (208V)

N.O.

N.C.

The heavy lines drawn inside

the terminal blocks represent

permanent internal jumpers.

The heavy bracketed lines drawn

outside the terminal blocks represent

removable external push-in jumpers.

Defrost Limit

Relay Control

Defrost Termination

Defrost Heaters (208V)

Anti-Sweat (120V)

Lights (120V)

Lights (Neutral)

Fans (Neutral)

Relay Spot

Dew Point /

Humidistat

120V

COM

N.O.

N.C.

Fans (120V)

Anti-Sweat (Neutral)

Notes:

➀Field wiring from the dew

point/humidistat master case

Terminals 12 & 21.

➁Field wiring from an adjoin-

ing slave case anti-sweat relay

coil.

• Yellow terminals 1 through 8

are 208V Defrost Circuit.

• Terminals 1 through 3 are

internally jumpered.

• Terminals 4 and 5 are

internally jumpered.

• Terminals 6 through 8 are

internally jumpered.

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 and 22 are

jumpered with a removable

push-in jumper.

P/N 0387094A

Merchandisers

8HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

RL Wiring Diagram for Dew Point or Humidistat Control

Fans and Anti-Condensate Heaters on Common Power Circuit.

Only Cycles Door Anti-Condensate Heater.

(Gas Defrost)

Kits FL28 and FL29

Diagrams 0423677 and 0423689

The heavy lines drawn

inside the terminal blocks

represent permanent

internal jumpers.

The heavy bracketed lines

drawn outside the terminal

blocks represent removable

external push-in jumpers.

Thermostats

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

COM

C.O.R.

N.O.

N.C.

Defrost Limit

Relay Control

10 11 12 13 14 16 17 20 21 22 24 25 26

Fans & Anti-Sweat (120V)

Lights (120V)

Lights (Neutral)

Fans & Anti-Sweat (Neutral)

Notes:

➀Dew point or Humidistat

Anti-sweat control.

➁White wire not used on

Humidistat control.

➂Field wiring for slave case

relay coil(s).

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Terminals 13 and 14 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 through 24 are

jumpered with a removable

push-in jumper.

Dew Point and Humidistat Control

Installation Instruction

P/N 0387094A

HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

RL Wiring Diagram for Dew Point or Humidistat Slave Relay

Fans and Anti-Condensate Heaters on Common Power Circuit.

Only Cycles Door Anti-Condensate Heater.

(Gas Defrost)

Kits BF53

Diagrams 0423677 and 0423689

The heavy lines drawn

inside the terminal blocks

represent permanent

internal jumpers.

The heavy bracketed lines

drawn outside the terminal

blocks represent removable

external push-in jumpers.

Thermostats

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

COM

C.O.R.

N.O.

N.C.

Defrost Limit

Relay Control

10 11 12 13 14 16 17 20 21 22 24 25 26

Lights (120V)

Lights (Neutral)

Fans & Anti-Sweat (Neutral)

Fans & Anti-Sweat (120V)

Relay Spot

Dew Point /

Humidistat

120V

COM

N.O.

N.C.

Notes:

➀Field wiring from the dew

point/humidistat master case

Terminals 12 & 21.

➁Field wiring from an adjoin-

ing slave case anti-sweat relay

coil.

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Terminals 13 and 14 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 through 24 are

jumpered with a removable

push-in jumper.

P/N 0387094A

Merchandisers

10 HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.

RL Wiring Diagram for Dew Point or Humidistat Control

Fans and Anti-Condensate Heaters on Separate Power Circuits.

Only Cycles Door Anti-Condensate Heater.

(Gas Defrost)

Kits FL44 and FL45

Diagrams 0423679 and 0423689

The heavy lines drawn

inside the terminal blocks

represent permanent

internal jumpers.

The heavy bracketed lines

drawn outside the terminal

blocks represent removable

external push-in jumpers.

Thermostats

Fans

Rod Heater (Drain)

Frame Anti-Sweat

Door Anti-Sweat

Lights

Switch

Fan Relay

208V

Anti-Sweat

Relay

120V

N.C.

O.O.R.

COM

C.O.R.

N.O.

N.C.

Defrost Limit

Relay Control

10 11 12 13 14 16 17 20 21 22 24 25 26

Anti-Sweat (120V)

Lights (120V)

Lights (Neutral)

Fans (Neutral)

Fans (120V)

Anti-Sweat (Neutral)

Notes:

➀Dew point or Humidistat

Anti-sweat control.

➁White wire not used on

Humidistat control.

➂Field wiring for slave case

relay coil(s).

• Gray terminals 10 through 17

are 120V Power.

• Terminals 14 and 16 are

internally jumpered.

• Terminals 10 and 11 are

jumpered with a removable

push-in jumper.

• Blue terminals 20 through 26

are 120V Neutral

• Terminals 24 through 26 are

internally jumpered.

• Terminals 21 and 22 are

jumpered with a removable

push-in jumper.

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