Intermatic DTAV40 Series Owner's Manual
MODE SELECTION (S1 DIP SWITCH):
First determine what model is being replaced (Grasslin or Competitors).
The mode selector DIP switch (located at lower right side of the board)
determines the configuration of terminals 2 & 4. In position “A”, the
terminals are normally closed, and will open during a defrost. In position
“B”, terminals 2 & 4 are normally open, and will close during a defrost.
Select proper position from table below and wiring diagrams indicated.
To select mode simply slide the switch as follows:
Mode
A - position switch up;
Mode
B - position switch down;
Note: When Mode “B” is selected the
DTAV40 will operate as follows:
Refrigeration Mode - Red & Green LEDs
will turn OFF (1 & 3 and 2 & 4 break while
1 & F make)
Defrost Mode - RED & GREEN LEDs will turn
ON (1 & 3 and 2 & 4 make while 1 & F break)
Installation &
Operating Instructions
• Disconnectpoweratthecircuitbreaker(s)ordisconnectswitch(es)beforebeginninginstallationorservicing.
Donotusetheoffpositionofthetimerforequipmentservicing.
• Morethanonecircuitbreakerordisconnectswitchmayberequiredtode-energizetheequipmentbefore
servicing.
• UseCOPPERconductorsONLY.
• For40amploads,use#8AWGwire,rated90degreesCmin.
• Wireinaccordancewithnationalandlocalelectricalcoderequirements.
• ThisType3Renclosuredoesnotprovidegroundingbetweenconduitconnections.Whenmetallicconduitis
used,youmustalsoinstallgroundingtypebushingsandjumperwire,inaccordancewithåthenational
electricalcoderequirements.
• Whenreplacingatimerwithametalbracket,replacethebracketwithanon-metallicbracket.(Intermatic
ModelDT-Bisrecommended.)
• Foroutdoorlocations,raintight,orwetlocation,conduithubsthatcomplywithrequirementsofUL514B
(standardforfittingsforconduitandoutletboxes)aretobeused.
DTAV40 Series Time Initiated, Temperature, Pressure or
Time Terminated Auto-Voltage 40A Defrost Timers
WARNING Risk of Fire or Electric Shock
TImer Mechanism
Figure 2
2-1/2"
6-1/8"
Ground Lug
INSTALLATION
1. Open door and then remove interior protective cover by releasing
spring latch on bottom (Figure 1). Cover flexes out easily on Type 1
metallic case (Figure 4).
2. Apply corresponding Terminal Identification and Door labels-see
retrofit kit instructions.
3. Remove timer mechanism by releasing PCB Latch on bottom
(Figure 1). Timer Mechanism comes detached in TYPE-1 Metallic
Enclosure (Figure 4).
4. Select knockouts to be used. Remove inner 1/2" knockout by
inserting a screwdriver in the slot and carefully punch knockout
loose. Remove slug. If 3/4" knockout is required, remove the outer
ring with pliers after removing the 1/2" knockout. Smooth edges
with knife if necessary, on plastic enclosure only.
5. Place enclosure in desired mounting location and mark the three
mounting holes (refer to Figure 2 for Type 3R and Figure 3 for
Type 1 below). Start by installing top screw into mounting surface
and hanging enclosure on screw head through keyhole; then screw
in remaining two screws in bottom holes.
6. Grounding: Terminate all ground wires to ground lug on bottom of
enclosure.
7. Re-install timer in enclosure.
8. Replace interior protective cover.
PCB Latch
Interior
Protective
Cover
Timer Mechanism
Spring Latch
Paragon
Precision
TIME INITIATED, TIME TERMINATED
Grasslin
Mode Selection Wiring Diag.
TIME INITIATED, PRESSURE TERMINATED
(Separate Pressure Switch Required (see instructions)
TIME INITIATED, REMOTE TEMPERATURE OR
PRESSURE TERMINATED
Cross Ref.
DTAV replaces over 40 models.
Set Mode Selection (See S1 DIP Switch, table and instructions below).
Figure 4
7 ¾"
5"
Type 1 Enclosure
Figure 3
PCB Latch
Interior
Protective Cover
UL TYPE 3R ENCLOSURE
Mode Selection Switch (S1)
SEE SEparatE BraCKEt
rEpLaCEMENt NOtICE
IN paCKaGE
UL TYPE 1 ENCLOSURE
BRACKET MOUNT
(Saleable item DT-B)
Type 1 Enclosure
Type 3R Enclosure
Type 3R Enclosure
Figure 1
2-1/2"
4-1/16"
SPECIFICATIONS:
Maximum Contact Switch Rating:
40A Resistive @ 120-240VAC
2HP @ 240VAC; 1HP @ 120VAC
WIRING CONNECTIONS:
Screw box lug terminals. Up to one #8AWG Wire
ENVIRONMENTAL RATINGS:
Operating Temperature Range: -40˚F to 104˚F
(-40˚C to 40˚C)
Operating Humidity: 0 - 95% RH,
non-condensing
ELECTRICAL LIFE:
50,000 Operations at Full Load
DIMENSIONS:
8.795" x 6.631" x 2.935" (H x W x D)
SHIPPING WEIGHT: 3 lbs.
AGENCY APPROVALS: UL LISTED
Risk of Damage to Timer
• Rotatetimerdialclockwiseonly.
• Donotmovetheclockhandsonthetimer.Movingtheclockhandscandamagethetimer.
NOTICE
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