Daim Ntawv Qhia Tus Neeg Siv

Table Of Contents
Air-Source Unitary Heat Pumps
7
4) Rain shield
5) Louvered steel top fan guard
c. Quantum Coil:
1) Lennox designed and fabricated coil
2) Superior corrosion resistance
3) Ripple-edge aluminum fins
4) Aluminum tub construction
5) Lanced fins for maximum fin surface exposure
6) Fin collars grip tubing for maximum contact area
7) Flared shoulder tubing connections
8) Factory tested under high pressure
9) Entire coil is accessible for cleaning
d. Factory installed and piped outdoor unit expansion valve
e. High Capacity Liquid Line Drier
1) 100% molecular-sieve, bead type, bi-flow drier, factory installed in liquid line
f. Factory installed, 4-way interchange reversing valve
g. [High Pressure Switch Kit: manual reset for system protection from high pressure
conditions resulting from fan failure or blocked/dirty coil]
h. [Loss of Charge Kit : SPST, normally closed switch and automatic reset switch
mounted on suction line]
i. [Accessories:]
1) [Refrigerant Line Kits: Factory cleaned, dried, pressurized and sealed for field
fabrication]
2) [Check/Expansion Valve Kits]
4. Controls:
a. Defrost Control:
1) Solid-state temperature/time control
2) Initiates defrost cycle every 30, 60 or 90 minutes of compressor “on” time at
temperatures below 42 degrees F (6 degrees C)
3) Anti-short cycle, timed-off control
4) High and low pressure switch monitoring with 5 trip lockout
b. [Options:]
1) [Freezestat: senses suction line temperature and cycles compressor off when
suction line temperature falls below 29 degrees F (-2 degrees C) and cycles