-7-
VII. SPECIALTY PRODUCTS - PROOFER/PROOFER RETARDER MODELS
(cont’d)
VII. c - OPERATING THE DIAL HUMIDISTAT (cont’d):
When the desired temperature and humidity settings
are achieved, the white mode indicating lights will go
OFF and you are now ready to proof your product. The
mode lights indicate the various stages of operation
during the proofing process.
AMBER - “LOWER LEVEL” Will be illuminated during
normal operation. Will only turn off when heater wa-
ter level is below minimum safety level or at start-up.
WHITE - “THERMOSTAT” Will be illuminated when
cabinet is not at set temperature. When cabinet
achieves set temperature, the light will turn off.
RED - “TROUBLE” Will illuminate whenever the water
level is below minimum safe level. It will also be on at
start-up for approximately 30 seconds. When the red
light illuminates, power to the heaters is turned off.
This light is also lit during the flush period until the
units water level returns to normal.
GREEN - “WATER LEVEL” Will be illuminated when
the water pan is full. This light will turn off when the
solenoid valve opens to replenish the water pan.
WHITE - “HUMIDISTAT” Will be illuminated when cabi-
net is not at set humidity. When the cabinet reaches
the set point this light will turn off.
VII. d - RETARDER OPERATION:
Additional control features for use with model
PRR232HUT only.
RETARD MODE: When in retard mode, the refrigera-
tion system will maintain the cabinet temperature be-
tween 35
°
to 40
°
F. This temperature can be adjusted
through use of the temperature control, located inside
the unit mounted on the front of the evaporator coil
housing. To lower the cabinet temperature, turn the
control knob clockwise. To raise the temperature, turn
the knob counter-clockwise.
TIME DELAY: The Traulsen proofer/retarder cabinet is
supplied equipped with a time delay. When the unit is
in automatic operation, this time delay shuts the unit
down for up to one hour when switching from RETARD
to PROOF mode. This allows the cabinet to gradually
rise in temperature before the air and water heaters
come on.
For the best performance, it is recommended that this
time delay be used. However, a time delay override
allows the user to bypass the relay, and the unit will
go from RETARD directly into PROOF. This is accom-
plished by placing the delay bypass switch in the “ON”
position.
VII. d - RETARDER OPERATION (cont’d):
AUTOMATIC MODE/24 HOUR TIMER - The Traulsen
proofer retarder cabinet is designed to allow both au-
tomatic and manual operation. With the function
switch in the “AUTO” position, a 24-hour timer auto-
matically switches between PROOF and RETARD
modes at preset times daily.
To set these switching times, carefully pull the front
protective cover (clear plastic) from the timer, which
is located on the front panel. These should be one
green “ON” pin and one red “OFF” pin on the timer
dial, as well as two spares for each in the top right
hand corner. Simply pull the red “OFF” pin from the
outside ring of the dial and place it in the position cor-
responding to the time that the cabinet should switch
out of RETARD. NOTE: White portion of the dial cor-
responds to daytime hours; black portion corresponds
to nighttime hours.
If the time delay is not bypassed, the cabinet will go
into a waiting period and then switch into PROOF
mode. Therefore, the “OFF” pin should be set at least
one hour and thirty minutes before the cabinet is ready
to proof. Of course, this will vary with conditions and
the user should find the best time for application.
The “ON” pin should be placed at the time when the
unit should switch out of PROOF. When the pressure
in the refrigeration system is in the operating range,
the system will start and soon come down to stan-
dard retarding temperatures ( 37
°
to 42
°
F). The time
necessary for this function of operating conditions
(proof temperature, room temperature, etc.) and will
vary.
Once both pins have been properly placed, set the
correct time of day. This is accomplished by turning
the center knob clockwise until the correct hour is in-
dicated at the white marker in the left-hand corner. Now
adjust for correct minutes, which are indicated by the
pointer in the interior cut out on the dial. The timer
runs independent of the control circuits, and should
only need adjustment in the event of a power failure.
TO SET THE UNIT FOR AUTOMATIC OPERATION:
1. Set the 24-hour timer for the correct time of day
2. Set pins for desired switching times on 24-hour time
3. Choose time delay bypass; “ON” or “OFF”
4. Set mode switch for “AUTO”
5. Set desired proof temperature and humidity
6. Place control switch in the “ON” position
The unit will now run automatically.
