Leslie Controls NYC Heat Exchanger - Manual (Page 14)

Page 14 of 25
- Accepted for use in food processing industries (if
applicable)
- Removes scale, slag, tarnishes, and hard water
deposits
- Easily rinsed out of system
- No objectionable or corrosive fumes
CERTIFICATION
Heat exchangers are designed and fabricated in accordance
with ASME Code Sec. VIII, Div.1 for symbols “U” and
“UM”. Heat exchangers are CSA approved and have
obtained CRN in Canadian provinces.
Copies of above certificates are available upon request.
1. GENERAL OPERATION OF
RELIEF VALVE
PRESSURE RELIEF VALVE IS NATIONAL
BOARD CERTIFIED. TEMPERATURE
STEAM RATED
ANS Z21.22 RELIEF VALVES CONFORMS
TO H.U.D./F.H.A. REQUIREMENTS.
Discharge from relief valve shall be conducted to a
suitable place for disposal when relief occurs by
installation of a drain line to any open drain. Make sure
water in drain cannot freeze and cause a stop-up. Relief
line must be such that relief valve outlet and drain line will
drain dry.
Do not use reduced couplings or restrictions to install drain
line to valve discharge.
This valve protects a water system from over-pressure. It
will automatically shut off after providing such protection.
If valve fails to shut off, check for excessive pressure
and/or heat input control operation.
REPLACEMENT PARTS
A. RECIRCULATION PUMP
(ref Figure 6)
Pump replacement parts are :
•
Impeller
•
Impeller seal
•
Body Gasket
Do not attempt to replace motor bearings, replace the
motor as a whole unit. Refer to manufactures specific IOM
for further details.
D. BLEND VALVE
Service Parts For Model BO
Ref
No
Part No Description
3 9585L001 Seat, Bolted-In
4 1182 Sleeve
5 11132L050 Capscrews
6 11133 Lockwasher
7 1183 Element O-Ring, Buna-N
8 1096X(TEMP) Element Assembly
9 761 O-Ring
Blend Valve temperature ranges are:
150 degrees F for the first valve
130S degrees F (S = Special 120 degree F unit)
Service Kit No. 9167X(Temp.) Standard Element
Ref
No
Qty Description Part No.
3 1 Element 1125X(Temp.)
4 1 O-Ring 1205
5 1 O-Ring 277L145
6 1 O-Ring 11080L001
7 1 O-Ring 11079L001
No adjustments are ever required on thermostatic valves.
Once installed a thermostatic valve will provide years of
trouble-free service. It is entirely self-contained, and there
are no external bulbs or lines to become damaged or
broken. There are no packing glands to tighten and no
parts to oil. Temperature is permanently set at factory and
requires no further adjustment.
Operating temperature can be changed only by changing
temperature
element assemblies which is easily
accomplished by unbolting housing. Element assemblies
are all interchangeable within each lettered valve series.
Larger valves in “B” and “H” series contain multiple
element assemblies in one housing. This means that a
temperature element assembly will fit any size
thermostatic valve housing in that series.
WARNING!
This product contains a chemical known to the State
of California to cause cancer, birth defects or other
reproductive harm.