15750-1
SECTION 15750
HOT WATER COILS
PART 1 - GENERAL
1.1 DESCRIPTION
A. Work Included: Provide and install hot water heating coils of the types, sizes and
B.
capacities shown on the drawings.
Related Work Specified Elsewhere: "HVAC - General" is specified in this division.
1.2 QUALITY ASSURANCE
A.
B.
Verification of Operating Data: Capacities, pressure drops and selection procedures
shall be certified in accordance with ARI Standard 410.
15732-1
SECTION 15732
CONVERTORS
PART 1 - GENERAL
1.1 DESCRIPTION
A.
B.
Work Included: Furnish and install steam to hot water convertor(s) of type, location,
and capacity as shown on the Drawings.
Related Work Specified Elsewhere: "HVAC - General" is specified in Section 15600;
“Hydronic Heating Systems Piping and Specialties” is specified in Section 15601;
and “Steam Heating Systems Piping and Specialties” is specified in Section 15602.
1.2 QUALITY ASSURANCE
A.
15671-4
DUCTLESS SPLIT SYSTEM HEAT PUMP UNITS
h. Fan speed controls shall be user-selectable: high, medium, low or
microprocessor controlled automatic operation during all operating
modes.
The unit shall be protected against the following:
i. Indoor coil freeze-up.
j. Indoor coil high temperature protection shall be provided to detect
excessive indoor discharge temperature when unit is in heat pump mode.
5. Filters:
Units shall have filter rack with factory-supplied washable filter.
C. Systems shall be:
15671-3
DUCTLESS SPLIT SYSTEM HEAT PUMP UNITS
Fans:
a. The unit fan shall be high performance, double inlet, forward curve, direct
drive sirocco fan with a single motor. The fans shall be statically and
dynamically balanced and run on a motor with permanently lubricated
bearings. The indoor fan shall consist of three (3) speeds: Low, Mid, and
Hi and Auto. The fan shall have a selectable Auto fan setting that will
adjust the fan speed based on the difference between controller set-point
and space temperature.
15671-2
DUCTLESS SPLIT SYSTEM HEAT PUMP UNITS
b. The compressor shall be driven by inverter circuit to control compressor
speed. The compressor speed shall dynamically vary to match the room
load for significantly increasing the efficiency of the system which shall
result in significant energy savings.
c. The unit shall have an accumulator and high pressure safety switch.
d. The compressor shall be mounted to avoid the transmission of vibration.
Outdoor Coil:
15671-1
SECTION 15671
DUCTLESS SPLIT SYSTEM HEAT PUMP UNITS
PART 1 - GENERAL
1.1 DESCRIPTION
A. Work Included: Furnish and install ductless split system heat pump systems of the
size and capacities as shown on the drawings. Each unit shall include an outdoor
condensing unit, high wall mounted direct expansion fan coil unit, refrigeration
specialties, refrigerant charge and wired remote control.
B. Related Work Specified Elsewhere.
1. "HVAC - General" is specified in this Division.
15626-2
HVAC SYSTEM PUMPS (IN-LINE CIRCULATORS)
3.2 ADJUSTING
A. Test and run complete heating system under actual working conditions and adjust the
unit to the satisfaction of the Engineer.
END OF SECTION
13089K
15626-1
SECTION 15626
HVAC SYSTEM PUMPS (IN-LINE CIRCULATORS)
PART 1 - GENERAL
1.1 DESCRIPTION
A. Work Included: Provide and install horizontal inline centrifugal single stage pumps
with the capacities and characteristics as shown on the equipment schedules.
B. Related Work Specified Elsewhere: "HVAC - General" is specified in this Division.
12 QUALITY ASSURANCE
A. Verification of Unit Output: Equipment shall be supplied with manufacturer's
certificate and pump curve for rated performance, horsepower, etc.
15619-4
GAS FIRED SEPARATED COMBUSTION AIR HANDLING UNITS
3.2 FIELD QUALITY CONTROL
A.
B.
C.
Manufacturer's Field Service: Inspect, test, and adjust components, assemblies, and
equipment installations, including connections. Report results in writing.
Perform tests and inspections and prepare test reports.
Manufacturer's Field Service: Inspect components, assemblies, and equipment
installations, including connections, and to assist in testing. Report results in writing.
Tests and Inspections:
15619-3
GAS FIRED SEPARATED COMBUSTION AIR HANDLING UNITS
2.4 BLOWER
A. Supply Air: Belt drive motor and blower shall be assembled onto a minimum 14 gauge
galvanized steel platform and must have neoprene vibration isolation devices,
minimum of 1 - 1/8 inches thick.
B. Blower assemblies: Shall be statically and dynamically balanced and designed for
continuous operation at maximum rated fan speed and horsepower.
C. Centrifugal blower housing: Formed and reinforced steel panels to make curved scroll
housing with shaped cutoff.
