Comfort-Aire HTS Series Split System,Two Stage, 2-5 Tons - Manual (Page 9)

Figure 2: HTS Installation
Gasket
Swivel Nut
Stainless steel
snap ring
Brass Adaptor
Hand Tighten
Only!
Do Not
Overtighten!
9
Installation, Operation & Maintenance HTS SERIES SPLIT SYSTEM Heat Controller, LLC
Piping Installation
The typical closed loop ground source system is shown in
Figure 3. All earth loop piping materials should be limited
to polyethylene fusion only for in-ground sections of the
loop. Galvanized or steel fi ttings should not be used at any
time due to their tendency to corrode. All plastic to metal
threaded fi ttings should be avoided due to their potential to
leak in earth coupled applications. A fl anged fi tting should
be substituted. P/T plugs should be used so that fl ow can be
measured using the pressure drop of the unit heat exchanger.
Installation
External Flow Controller Mounting
The Flow Controller can be mounted beside the unit as
shown in Figure 4. Review the Flow Controller installa-
tion manual for more details.
Water Connections-Residential (Distributor) Models
Residential models utilize swivel piping fi ttings for water
connections that are rated for 450 psi (3101 kPa) operat-
ing pressure. The connections have a rubber gasket seal
similar to a garden hose gasket, which when mated to
the fl ush end of most 1” threaded male pipe fi ttings pro-
vides a leak-free seal without the need for thread sealing
tape or joint compound. Insure that the rubber seal is in
the swivel connector prior to attempting any connection
(rubber seals are shipped attached to the swivel connec-
tor). DO NOT OVER TIGHTEN or leaks may occur.
The female locking ring is threaded onto the pipe threads
which holds the male pipe end against the rubber gasket,
and seals the joint. HAND TIGHTEN ONLY! DO NOT
OVERTIGHTEN!
Figure 3: Water Connections (Indoor Compressor Section)
CAUTION! The following instructions represent industry
accepted installation practices for closed loop earth
coupled heat pump systems. Instructions are provided
to assist the contractor in installing trouble free ground
loops. These instructions are recommendations only.
State/provincial and local codes MUST be followed and
installation MUST conform to ALL applicable codes. It is
the responsibility of the installing contractor to determine
and comply with ALL applicable codes and regulations.
CAUTION!
GROUND-LOOP HEAT PUMP APPLICATIONS
Pre-Installation
Prior to installation, locate and mark all existing underground
utilities, piping, etc. Install loops for new construction before
sidewalks, patios, driveways, and other construction has
begun. During construction, accurately mark all ground loop
piping on the plot plan as an aid in avoiding potential future
damage to the installation.