MN90300B 072016
Model 90300 Microprocessor Temperature Controls — Data sheet
Mounting –
90300 controls mount to any standard well. Mount
the 90300 directly to a well (new or existing) with hardware
supplied in the separate well mounting kit. See below for
dimensions.
Well Kits –
Wells for 90300 sensors are available in the sizes shown
below. Well kits include sensor mounting hardware designed to
hold sensor securely in position.
Sensors –
Sensors are available separately for 90300 only.
Configurations
Error Codes
3"
4
3
/
8
"
4
3
/
4
"
Error Code
Reason
01
Primary (K2) relay is welded on.
Note:
If the control is reset
from error code 01, the red LED will flash every 5 seconds
indicating the control must be replaced.
02
Primary & Safety relays (K1 and K2) on. The control cannot
be reset from error code 02 and must be replaced.
03
Primary & Safety relays (K1 and K2) are off
05
Simulated High Temp lockout
06
Temp is above set high temp but below thermistor high
(250°F)
16
AC line frequency out of tolerance
Error Code
Reason
20
Temp sensor 1 out of range failure
21
Temp sensor 2 out of range failure
22
High limit temp sensor out of range failure
23
Temp sensor 1 pin is open
24
Temp sensor 2 pin is open
25
High limit temp sensor is open
07
,
10
,
1 1
,
12
,
13
,
14
,
15
Internal hardware safety failure – unit should be replaced. Contact customer service for additional informa-
tion. 1-800-989-2275