Specifications
2 
GENERAL 
This  equipment  should  only  be  installed 
by  trained  and  qualified  personnel  who  are 
familiar  with  absorption  chillers.    All 
precautions in these instructions, as well as 
on tags and labels attached to the unit, must 
be  observed  to  ensure  the  safety  of  the 
personnel and maintain warranty validation. 
Each Yazaki absorption chiller or chiller-
heater  has  been  evacuated,  charged  with 
lithium bromide and  water solution, and run 
tested prior to leaving the factory. 
Field  wiring  connections  are  located  on 
the left side of the unit when facing the front 
of the unit, except on the WFC-SC50, which 
has them located at the rear of the unit.  In 
all sizes, piping connections are all located at 
the rear of the unit. 
After the equipment has been installed, a 
Yazaki  Authorized  Service  Provider  (ASP) 
must check the installation and supervise or 
conduct  the  initial  startup  and  operation  of 
the unit. 
CAUTION 
THE  YAZAKI  WARRANTY  WILL  BE 
VOIDED  IF  THE  FOLLOWING 
RESTRICTIONS ARE NOT OBSERVED: 
1. DO  NOT  OPEN  ANY  SERVICE  VALVES 
WITHOUT  A  PROPER  EVACUATION 
ASSEMBLY ATTACHED TO THEM AS SUCH 
ACTION  WILL  RESULT  IN  LOSS  OF 
VACUUM  AND  INTRODUCTION  OF  GASES 
TO  THE  INTERIOR  OF  THE  MACHINE 
WHICH COULD CAUSE CORROSION. 
2. ALWAYS  HANDLE  THE  EQUIPMENT  WITH 
CARE  AND  MAINTAIN  IN  A  NEAR-
VERTICAL POSITION DURING RIGGING.  IF 
THE  EQUIPMENT  MUST  BE  TILTED, 
CAREFULLY  FOLLOW  INSTRUCTIONS 
PROVIDED WITHIN THIS DOCUMENT. 
3. DO  NOT  ATTEMPT  TO  START  THE 
SYSTEM WITHOUT SUPERVISION FROM A 
YAZAKI AUTHORIZED SERVICE PROVIDER 
(ASP). 
MODEL DESIGNATION 
 WFC-S C 10 
Water-Fired Chiller with Integrated Solution Pump 
C - Cooling Only Design; H – Heat/Cool Design 
Cooling Capacity: 10 – 10 rated tons 
              20 – 20 rated tons 
              30 – 30 rated tons 
              50 – 50 rated tons 
ACCESSORIES 
Provided with the Chiller/Chiller-Heater:      Optional Accessories: 
ACT-3 Maintenance Checker (1)              Arotrend Remote Monitoring 
Eye bolts (4)                          FS2 Cooling Water Flow Switch 
Shims (6) {except on WFC-SC50}               LON Adapter for BMS Interface 
Installation Instructions (1)                  WFC-S Service Manual 
Operating Instructions (1)                  WTI Inlet Chilled/Hot Water Sensor 
L-Anchor Plates {with WFC-SC50 Only}            Heat Medium Bypass Valve Kits 










