Product Overview

R E F R I G E R A T I O N A N D
A I R C O N D I T I O N I N G
Product information
September 2005
Scope
This product information is issued in order
to provide information about the markings
stamped on the cover plates of Danfoss
Industrial & Appliance Controls’ thermostats
type 077B, and especially to introduce the
type identification.
General
The specific thermostat marking varies
depending on the 077B type identification
(ID), as described in below setups.
Introduction
From July 2005 the change will be intro-
duced successively in all our manufacturing
plants.
Danfoss Thermostat Type 077B
Identification markings on thermostats 077B
Type ID Thermostat function
B0 Normal in/out
B02 Normal in/out, auxiliary contact
B025
Normal in/out, without range
+ revesing switch
B04 Normal in/out, + reversing switch
B045 Normal in/out, without range
B2
Normal in/out, + signal contact,
cut-in at rising temperature
B24
Normal in/out, without range
+ signal contact, cut-in at rising
temperature
B3
Normal in/out, + signal contact,
cut-out at rising temperature
B34
Normal in/out, without range
+ signal contact, cut-out at rising
temperature
B5
Variable cut-in temperature,
automatic defrosting
B52
Variable cut-in temperature, auto-
matic defrosting + auxiliary contact
B53
Variable cut-in temperature, auto-
matic defrosting + reversing switch
B6
Constant cut-in temperature,
automatic defrosting
B62
Constant cut-in temperature,
automatic defrosting + auxiliary
contact
B63
Constant cut-in temperature,
automatic defrosting + reversing
switch
Type ID Thermostat function
B25
Normal in/out, + signal contact,
–cut-in at rising temperature
+ serial contact
B26
Normal in/out, + signal contact,
cut-in at rising temperature
+ super freeze indication
Type ID Thermostat function
B4
Normal in/out,
+ semi automatic defrost
Danfoss Industrial & Appliance Controls Division, DK-6430 Nordborg, Denmark
Phone: [phone], Telefax: [phone], www.danfoss.com
DD.45.C1.02 Produced by Danfoss Industri Service - Advertising 05.08.APH.LDS
Decoding
1 Type ID
2 Customer code number
3 Internal production line code
4 Danfoss sales code
5 “L” marking added for small differential contact
6 Manufacturing date:
Ex.: 1851 Digit 1 & 2 : 18 = week no
Digit 3 : 5 = year
Digit 4 : 1 = batch code
7 Warm cut-in temperature or EBD marking
8 Warm cut-out temperature
9 Cold cut-in temperature
10 Cold cut-out temperature