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DATE: March 1, 2005 BULLETIN NO: M_05_004
TITLE: How to Switch a Migmaster 203/253 from230 to 208 vac
RATING:
_
(Action is Required) (Potential Problem)
_
(Action is Optional) (Enhanced Product)
_
(Unrestricted) (Restricted Distribution)
PRODUCT SERIES/ MODEL:
Migmaster 173 (Not Required)
Migmaster 203
Migmaster 253
SERIAL NO:
All
SUMMARY:
The factory default set-up for the Migmaster 203 & 253 is 230 VAC primary power. If 208 VAC
is the available voltage during installation, the Migmaster 203 or 253 should be reconfigured
for 208 VAC primary power using the instructions below. The Migmaster 173 is designed for
either 208 and 230 VAC primary power and does not require reconfiguration.
OPERATIONAL IMPACT:
None
ACTION:
1. For the Migmaster 203, remove the top/right and lower left side panel
2. For the Migmaster 253 remove the top/right side panel only
3. Locate the XTM terminal block and the TC1 control transformer (see the photo’s that follow)
4. Follow the instructions below relative to each power source.
_ DIRECTIVE _ _ ALERT
X_ INFORMATION _ _ PRODUCT IMPROVEMENT
X_ General Distribution _ _ Business Confidential
NOTE
The TC1 terminals are very fragile!
DO NOT BEND! THEY COULD BREAK!
Use needle nose pliers and pull straight out.
Do not wiggle or twist.
Migmaster 203 Conversion from 230 to 208V Primary Power
LOCATE XTM STRIP BEHIND
INDUCTOR ON THE BOTTOM LEFT
SECTION POWER SOURCE
REMOVE THE TWO INDUCTOR
MOUNTING SCREWS AND MOVE
INDUCTOR FROM IN FRONT OF THE
XTM Strip
XTM TERMINAL STRIP.
MOVE RED WIRE ON XTM
TERMINAL FROM 2A to 1A
MOVE RED WIRE ON XTM
TERMINAL FROM 2B to 1B
MOVE RED WIRE ON TC1
TRANSFORMER FROM T7 to T5
TC1
T7
T5
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