262675-UIM-A-0806

TYPICAL WIRING WITHOUT ELECTRIC HEAT

GND. LUG

GND.

LUG

 

POWER

SUPPLY

1 PHASE ELECTRIC HEAT

WITH CIRCUIT BREAKER

& BREAKER BAR REMOVED

MULTI-SOURCE (15 - 25 KW) - 25 KW SHOWN

GND. LUG

GND.

 

LUG

POWER

 

SUPPLY 1

 

POWER

 

SUPPLY 2

 

POWER

 

SUPPLY 3

 

MAY BE 1, 2, OR 3

 

CIRCUIT BREAKERS

 

ELECTRIC HEAT

WITHOUT CIRCUIT BREAKER

3 PHASE (10 - 15 KW)

GND. LUG

GND.

 

LUG

POWER

SUPPLY

TERMINAL BLOCK

ELECTRIC HEAT

WITHOUT CIRCUIT BREAKER

SINGLE SOURCE (2.5 - 10 KW)

GND. LUG

GND.

 

LUG

POWER SUPPLY

TERMINAL BLOCK

CONNECT LEADS WITH WIRE NUTS (TYPICAL ALL HEAT KITS)

1 PHASE ELECTRIC HEAT WITH CIRCUIT BREAKER AS SHIPPED FROM FACTORY SINGLE SOURCE

(2.5 - 25 KW) - 25 KW SHOWN

GND. LUG

 

 

GND.

 

 

 

 

LUG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER

SUPPLY

(JUMPER BAR)

MAY BE 1, 2, OR 3

CIRCUIT BREAKERS

POWER WIRING (208/230-1-60)

NOTE: USE ONLY COPPER CONDUCTORS

FIGURE 6: Line Power Connections

3 PHASE ELECTRIC HEAT WITH CIRCUIT BREAKER MULTI-SOURCE - 25 KW

GND. LUG

 

 

GND.

 

 

 

 

 

 

 

 

 

 

 

LUG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

POWER

SUPPLY 1

POWER

SUPPLY 2

(2)3-PHASE BREAKERS

CONNECT TRANSFORMER LEADS WITH WIRE NUTS (TYPICAL ALL HEAT KITS)

FIGURE 7: 460V - Line Power Connections

SECTION VIII: BLOWER SPEED

CONNECTIONS

All air handlers contain 3-speed blower motors which are prewired to the control board.

Adjust blower motor speed to provide airflow within the minimum and maximum limits approved for evaporator coil, electric heat and outdoor unit. Speed tap adjustments are made at the motor terminal block, See Figure 8 or 9. Airflow data is shown in Tables 19 & 20.

Connect motor wires to motor speed tap receptacle for speed desired. See wiring label for motor wiring details.

ELECTRIC HEAT

WITHOUT CIRCUIT BREAKER

3 PHASE (10 - 15 KW)

GND. LUG

GND.

 

LUG

POWER

SUPPLY

TERMINAL

BLOCK

FACTORY WIRED TO

 

PUR

TRANSFORMER

 

 

YEL

CAP

 

 

 

 

 

FACTORY WIRED TO

BRN

 

FAN MOTOR RELAY

 

 

 

 

 

TERMINAL ON

HIGH

PUR

CONTROL BOARD

 

 

 

230 VOLT

MED

 

 

BLOWER MOTOR

LOW

 

 

 

GND.

FIGURE 8: Blower Speed Connections

ORG TAPE END & CAP

WITH WIRE NUT

ORG

 

 

HIGH

L1

 

 

 

 

 

 

 

 

MED

 

 

 

 

 

 

 

460 VOLT

 

LOW

 

 

HIGH

 

 

ORG

 

 

 

 

 

L1

 

 

 

BLOWER

PUR

BRN

 

 

MED

 

 

 

460 VOLT

 

LOW

 

 

 

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L2

 

 

BLOWER

PUR

BRN

 

 

HIGH

 

 

 

 

MOTOR

 

 

MED

L1

 

 

HIGH

 

 

 

 

 

LOW

 

 

L2

 

 

 

 

 

 

 

 

 

 

 

460 VOLT

PUR

 

 

 

 

 

 

MEDIUM

BRN

 

 

 

 

 

BLOWER

 

 

 

 

 

 

 

MOTOR

 

 

 

 

 

 

 

 

 

L2

 

 

 

 

 

 

 

 

 

 

 

LOW

 

460 VOLT BLOWER MOTOR

FIGURE 9: 460V - Blower Speed Connections

8

Unitary Products Group

Page 8
Image 8
York MA installation manual Section Viii Blower Speed Connections, Line Power Connections

MA specifications

York, Maine, is a picturesque coastal town that embodies the charm and beauty of New England. Nestled along the shores of the Atlantic Ocean, this town is renowned for its stunning beaches, rich history, and vibrant community life. The natural landscape of York is characterized by its rugged coastline, rolling hills, and lush forests, making it a prime destination for outdoor enthusiasts and nature lovers.

One of the main features of York is its beautiful beaches, notably York Beach, Long Sands, and Short Sands. These sandy stretches attract visitors throughout the summer months, offering opportunities for swimming, sunbathing, and beachcombing. The picturesque lighthouse at Cape Neddick, often referred to as “Nubble Light,” is a beloved landmark that epitomizes the coastal aesthetic of the area and is a popular spot for photography.

York is steeped in history, with many historic sites that tell the story of its founding in the early 17th century. The Old York Historical Society offers insight into the town's past, featuring well-preserved structures and exhibits on colonial life. The charm of its historical architecture can also be seen in the area's classic New England homes and iconic buildings, such as the York Village Church.

In terms of technology, York has kept pace with modern advancements while preserving its historical identity. The town embraces sustainable practices, integrating technology in areas such as waste management and renewable energy initiatives. Residents enjoy access to high-speed internet, which has become increasingly vital for both remote work and education.

Community features in York include its bustling downtown area, where local shops, restaurants, and cultural attractions create a vibrant atmosphere. The blend of small businesses and artisanal shops provides a unique shopping experience, while local dining options celebrate the region's seafood bounty and farm-to-table concepts.

York also values education, with a strong emphasis on providing quality schooling for children. The town is known for its dedicated educators and active community involvement in fostering a nurturing environment for learning.

In summary, York, Maine, is a delightful combination of natural beauty, rich history, and modern amenities. The town’s commitment to preserving its character while embracing new technologies ensures that it remains a desirable destination for both residents and visitors alike. Whether enjoying the beaches, exploring historic sites, or relishing the local cuisine, York offers an enriching experience that captures the essence of coastal New England living.