Middleby Marshall PS220 Microwave Oven User Manual


 
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Figure 22 - Temperature controllers
P/N 28071-0012 (A)
Analog Temperature Controller
without high-limit and
cooldown functions, 120V, on-off mode only.
P/N 28071-0018 (A)
Analog Temperature Controller with high-limit and
cooldown functions, 120V, on-off mode only.
P/N 34983 (B)
Analog Temperature Controller without high-limit and
cooldown functions, 120V, on-off mode only. Used on
PS200VL-series ovens only. PS200VL-series ovens
equipped with this Temperature Controller do not have
a cooldown feature and use a separate high limit con-
trol module.
P/N 28071-0027 (C)
Digital Temperature Controller with blue plastic face-
plate, 120V, on-off mode only.
P/N 28071-0028 (D)
Digital Temperature Controller with gray rubber face-
plate and buttons with text, 120V, on-off mode only.
P/N 28071-0028 (E)
Digital Temperature Controller with gray rubber face
plate and buttons with symbols, 120V, on-off mode only.
A
B
C
DEFG
SECTION 3 - SERVICING COMPONENTS
A. Part Number Reference - Temperature Controllers
Middleby Marshall ovens have used several different mod-
els of temperature controllers. The current Digital Tem-
perature Controller (P/N 46837, included in Service Kit 47321)
is the only model currently available. All other controllers
P/N 30871 (E)
Digital Temperature Controller with gray rubber face
plate and buttons with symbols, 208-240V, on-off mode
only. Used on early PS360WB70 and some CE oven
models.
P/N 32571 (E)
Digital Temperature Controller with gray rubber face
plate and buttons with symbols, 208-240V, PID mode
only. Used on early PS360EWB.
P/N 36021 (F)
Digital Temperature Controller with gray face plate (steel
trim on edges), 120-240V, selectable on-off or PID
modes.
P/N 36056 (G) - Service Kit P/N 36939
Digital Temperature Controller with black plastic face
plate, 120-240V, selectable on-off or PID modes.
P/N 46837 (G) - Service Kit P/N 47321
Digital Temperature Controller with black plastic face
plate, 120-240V, selectable on-off, PID and variable
pulse modes.
Note that the dedicated variable pulse mode is used on
the PS536 electric oven ONLY. Using this mode re-
quires moving a jumper on one of the PC boards inside
the controller. The PS555 variable pulse electric oven
does NOT use this mode and should have the control-
ler set to the PID mode as described in the Kit instruc-
tions.
shown are no longer available and part numbers are pro-
vided for reference only. Servicing these units is beyond
the scope of this manual. If one of these controllers is in
need of service, we recommend simply installing a current
unit (P/N 46837, included in Kit P/N 47321).