Nordic ATWC Series, Инструкция по установке и обслуживанию, Страница: 9 / 106

PRELIMINARY: 24-Sep-2021 Page 9 002536MAN-00
Installation Basics
Sample Bill of Materials -
ATWC Series
FROM MARITIME GEOTHERMAL
• ATWC SERIES HEAT PUMP W/ACEC OUTDOOR UNIT
• SHIELDED DOUBLE TWISTED PAIR WIRE
• BUFFER TANK W/ELEMENTS 12/15/20 kW
OPTIONAL FROM MARITIME GEOTHERMAL
• ANTI-VIBRATION PAD
• COMPRESSOR SOUND JACKETS (2)
• COMPRESSOR SECURE STARTS (2)
• AHW-65 AIR HANDLER(S)
ELECTRICAL
• HEAT PUMP SERVICE WIRE: 3-3, 4-3, 6-3, OR 8-3
• BUFFER TANK ELEMENT SERVICE WIRE
• 14-2 OUTDOOR RATED WIRE W/ DISCONNECT
SWITCH FOR OUTDOOR UNIT
• HEAT PUMP BREAKER: 40 TO 100A
• BUFFER TANK ELEMENT BREAKER
• ELEMENT CONTACTOR & ELEC. BOX
(IF NOT USING TANK W/ DRY CONTACTS)
• THERMOSTAT WIRE 18-4
• THERMOSTAT WIRE 18-2
• FORK TERMINALS FOR TSTAT WIRE (6)
REFRIGERATION
• 1/2” & 7/8” (OR 3/8” & 3/4”) ACR TUBING
• PIPE INSULATION
• EXTRA R410A & R134a REFR. FOR LINESETS >20 FT
HYDRONICS
• CIRCULATOR: HEAT PUMP TO TANK
• PIPE & FITTINGS: HEAT PUMP TO TANK
• ZONES CIRCULATOR(S)
• ZONE TRANSFORMER & CIRC CONTACTOR
• ZONE VALVES (IF NOT INDIVIDUAL PUMPS)
• ZONE PIPING
• OTHER AIR HANDLERS, DUCTING
• ZONE THERMOSTATS
• RELAYS OR ZONE CONTROLLER
• ZONE SUPPLY & RETURN HEADERS:
1” COPPER PIPE & FITTINGS
• PIPE & FITTINGS TO ZONES
• EXPANSION TANK
• 2” STYROFOAM INSUL. (IF PAD NOT PURCHASED)
Unpacking the Unit
When the 2-piece heat pump reaches its destination it
should be unpacked to determine if any damage has occurred
during shipment. Any visible damage should be noted on the
carrier's freight bill and a suitable claim filed at once.
Indoor Unit Placement
The the indoor unit should be placed near the outdoor unit
to keep the two refrigerant line sets as short as possible. The
line sets have a maximum length of 70 ft (21 m) but should be
as short as possible for maximum efficiency.
The front and two side access panels should remain clear
of obstruction for a distance of two feet to facilitate servicing
and general maintenance. No access is required on the back
side.
An anti-vibration pad, available as an accessory, or a
piece of 2” styrofoam should be placed under the unit. This will
deaden vibrations and protect the cabinet from rusting.
* See Piping chapter for an annotated copy of this diagram