TW-357 REV E
13
Lid Switch
Is attached to the hinge and determines whether or not the lid is open on the freezer. This also allows the
control to determine whether to activate the Quickchill, Auto Defog or Lid Alarm features.
Lid Switch
Figure 3.0 Lid Switch
Solenoid Valve
Designed to work with 12 VDC solenoid valves manufactured by Valcor, Parker-Hannifin, ASCO or Alcon.
(See plumbing assembly Figure 10.0 on page 37 of this manual.)
Thermocouples
Type T thermocouples determine the temperature in the freezer. The user may choose to use NONE, 1 or 2
thermocouples with this control at any time. (The unit comes complete with one Thermocouple)
Wall Transformer
A 16.5 VAC, 40 VA wall transformer is a standard option on the LABS cryostorage system with battery
backup. A 24 VAC, 40 VA wall transformer is supplied for the Kryos version (No Battery). The system is
supplied with a transformer compatible with common household (North American) 110VAC. (For other
power outlets contact Taylor-Wharton Customer Service.) These wall transformers have UL approval. UL
approval for the system as a whole is not required since the control operates on low voltage. If your power
source differs, or is subject to disruption or line surges due to other equipment on line, consult your Taylor-
Wharton representative.
Battery Backup
The LABS cryostorage system with the battery backup option has a 12VDC battery installed underneath the
unit's tabletop.
Remote Alarm
If an error condition occurs after a user defined period of time a remote alarm circuit can be initiated. This is
accomplished by connecting a remote device to the remote alarm jack on the rear electrical panel. The 3-pin
jack on the back of the unit provides continuity between pin #2 (common) and pin #3 in the normal condition.
Continuity between pin #1 and pin #2 is provided in an error condition. (See Figure 4.0 below.)
Figure 4.0 Remote Alarm Plug Connection
