Keeprite SmartVapII Installation Manual

NATIONAL

06/06/11

SmartVapII

TM

REFRIGERATION

PROGRAM SPECIFICATIONS
AND OPERATING
INSTRUCTIONS

1093776

Mechanical Defrost
Control System

Electrical Power:
208-230/1/60 - Electric Defrost
120V-230V/1/60 - Air Defrost

MECHANICAL

FEATURES:

· For use with 230V Low Prole Electric Defrost Evaporators

· Also available for 120V or 230V Air Defrost Evaporators

· Simple eld hook up –Two Pipes-Two Wires –It’s Done

· No wiring required to condensing unit / No eld adjustments /set up

· Thermostat and defrost controls all factory set (-10°F freezer/ +34°F cooler)

· Simple user-friendly adjustments/ programming (if required)

CONTENTS

Operating Instructions ............................................................................................ 2

Wiring Diagrams ................................................................................................... 3 - 6

Troubleshooting Guide......................................................................................... 7

OPERATING INSTRUCTIONS

1093776

- 2 -

06/06/11

Electric Defrost Factory Settings:

The following are the factory default settings and will suit
most applications:

· Room Thermostat Set Point :

-5°F cut-in for freezer, and +35°F for cooler

· Defrost Frequency: 4 cycles per day (24 hours)
with maximum fail safe set for 45 minutes.
(three white pins tripped out at 9AM-3PM-9PM-3AM)

· Defrost Termination Set Point:
55°F (xed, non-adjustable)

· Fan Delay Thermostat Set Point:
35°F (xed, non-adjustable)

Air Defrost Factory Settings:

· Room Thermostat Set Point : 39°F cut-in

· Defrost Frequency: 3 cycles per day (24 hours)

at 45 minutes. (three white pins tripped out at
9AM-5PM-1AM)

For further adjustment details,

refer to diagram inside the clock enclosure.

For optional adjustable fan delay and

defrost termination thermostats, contact factory.

Technical Assistance:

contact the factory at 1-800-463-9517

WIRING DIAGRAM

1093776

- 3 -

06/06/11

Electric Defrost Low Prole - 9A Max.

WIRING DIAGRAM

1093776

- 4 -

06/06/11

Electric Defrost Low Prole - 12A Max.

WIRING DIAGRAM

1093776

- 5 -

06/06/11

Electric Defrost Low Prole - 16A Max.

WIRING DIAGRAM

1093776

- 6 -

06/06/11

Air Defrost Low Prole - 12A Max.

TROUBLESHOOTING GUIDE

1093776

- 7 -

06/06/11

WARNING: These guidelines are intended only for qualied service personnel familiar with troubleshooting
procedures at hazardous high voltage.

For any evaporator performance troubleshooting refer to the evaporator Product Data and Installation manual supplied
with the evaporator.

For Timeclock operating information refer to the Grasslin instruction manual.

Ensure timeclock has the correct DIP switch settings. Red switch should be set to 230V mode (Electric Defrost) or as
required (120V or 230V) on the Air Defrost models. The blue DIP set to A position.

Service replacement part# for the DTMV40 timeclock is 1084740.

For further adjustment details,

refer to diagram inside the clock enclosure.

For optional adjustable fan delay and

defrost termination thermostats, contact factory.

Technical Assistance or Further Information:

contact the factory at 1-800-463-9517

NOTES

06/06/11

NATIONAL REFRIGERATION
& AIR CONDITIONING CANADA CORP.

159 ROY BLVD., BRANTFORD, ONTARIO, CANADA N3R 7K1
PHONE: [phone] [phone] FAX [phone]

Due to National Refrigeration’s policy of continuous product improvement, we reserve the right to make changes without notice.