[19]
Rev 4/15/14
Dairy Tech, Inc.
Service Manual:
DT10G, DT30G &DT60G
b.
Is there power getting to the
contactor? Check voltage to the top
of the contactor for 1L1 to ground
120vac, 5L3 to ground 120vac. 3L2
is neutral in 240vac dual phase
systems such as the US. (For Euro
240vac single phase find 240vac
between line and neutral occupying
1L1 and 5L3.) If no power, check
the breaker but power will also be
off to the unit.
c.
Is the DC signal from the control
arriving at the thermostat, and then
passing on to the SS Relay? If signal
comes to the thermostat but is not
passed to the SSR during cool
conditions, replace the thermostat.
See diagram.
d.
Is there power getting to the heater?
Initiate a cycle and the contactor
should make a loud “click” as it
activates. Check to see if the 220-
240vac is getting through the
contactor and out of 2T1 and 6T3 on
the bottom. If not, the contactor may
need replacing.
i.
If the contactor does not click,
check the 115vac leads at the A1
and A2 tabs (black and white
16awg wires) on the back top of
the contactor to see if it is being
signaled by the SS relay. If there
is 115vac signal, but no
activation of the contactor,
replace the contactor.
ii.
If no 115vac signal to the
contactor, check the Solid State
Relay K1. There should be a DC
signal though the yellow and
orange colored wires to the relay
and the LED on the relay should
be lit when activated. 115vac is
supplied to the relay through the
black wire at position 1. Once
signaled, there should be 115vac
out of the black wire position 2
to the contactor. If not, replace
the SS Relay K1
iii.
No DC signal to the SS Relay
K1 through yellow and orange
wires. Check to make sure the
control is lighting up the small
red LED for output 1 on the
display when operating a normal
heat cycle. If output 1 is lit but
no DC signal is found at
terminal 12 and 21 from the
control, then the control may be
damaged.
3.
240VAC is getting to the heating elements
but still no heat …. Check for continuity
through the heating elements. If no
continuity, replace the heating element with
the included spare or order a replacement
from Dairy Tech.
Содержание Platinum Series
Страница 2: ...2 Rev 4 15 14 Dairy Tech Inc Service Manual DT10G DT30G DT60G...
Страница 31: ...31 Rev 4 15 14 Schematic for Model DT10 30 60G 200 to 240VAC 1P 50 60Hz USA Domestic...
Страница 32: ...32 Rev 4 15 14 Schematic for Model DT10 30 60G 200 to 240VAC 1P 50 60Hz England Japan...
Страница 33: ...33 Rev 4 15 14 Schematic for Model DT10 30 60G 400VAC 3P Europe...
Страница 34: ...34 Rev 4 15 14 NOTES...
Страница 38: ...38 Rev 4 15 14...
