Installation
64
RT-SVX24J-EN
connections. Refer to Detail A in
Figure 12, p. 23
for the
location of these drain connections.
A condensate trap must be installed due to the drain
connection being on the “negative pressure” side of the
fan. Install the P-Traps at the unit using the guidelines in
Figure 41
.
Pitch the drain lines at least 1/2 inch for every 10 feet of
horizontal run to assure proper condensate flow. Do not
allow the horizontal run to sag causing a possible double-
trap condition which could result in condensate backup
due to “air lock”.
Units with Gas Furnace
Units equipped with a gas furnace have a 3/4" CPVC drain
connection stubbed out through the vertical support in the
gas heat section. It is extremely important that the
condensate be piped to a proper drain. Refer to the
appropriate illustration in
Figure 49, p. 71
for the location
of the drain connection.
Note:
Units equipped with an optional modulating gas
furnace will likely operate in a condensing mode
part of the time.
Ensure that all condensate drain line installations comply
with applicable building and waste disposal codes.
Note:
Installation on gas heat units will require addition
of heat tape to the condensate drain.
Removing Compressor Assembly
Shipping Hardware
Each manifolded compressor assembly is rigidly bolted to
a mounting rail assembly. The rail assembly is set on six
(6) rubber isolators.The assembly is held in place by six (6)
shipping “Tiedown” bolts. To remove the shipping
hardware, follow the procedures below:
1.
Remove the bolt in each rubber isolator and the slotted
shipping spacer located between the compressor rails
and the unit base rail illustrated in
Figure 43, p. 65
.
Reinstall the bolts at the same location by screwing
them into the base rail two to three turns only.
2. Ensure that the compressor rail assembly is free to
move on the rubber isolator.
Removing Supply and Exhaust Fan
Shipping Channels
Each supply fan assembly and exhaust fan assembly is
equipped with spring isolators. Shipping channels are
installed beneath each fan assembly and must be
removed. To locate and remove these channels, refer to
Figure 42, p. 65
and use the following procedures.
Spring Isolators
Spring isolators for the supply and/or exhaust fan are
shipped with the isolator adjusting bolt backed out. Field
adjustment is required for proper operation.
Figure 42,
p. 65
shows isolator locations. To adjust the spring
isolators use the following procedure.
1.
Remove and discard the shipping tie down bolts but
leave the shipping channels in place during the
adjustment procedure. See
Figure 42, p. 65
.
2. Tighten the leveling bolt on each isolator until the fan
assembly is approximately 1/4" above each shipping
channel.
3. Secure the lock nut on each isolator.
4. Remove the shipping channels and discard.
Remove Evaporative Condenser Fan
Shipping Brackets
To remove shipping brackets
Important:
Remove fan shipping brackets before
startup. Failure to remove brackets could
result in fan damage.
Evaporative condensers are shipped with fan shipping
brackets to reduce damage caused by vibration during
shipment. The fan shipping brackets must be removed
prior to unit startup.
To remove the shipping brackets start from the side
opposite to the drain actuator
(see
Figure 113, p. 162
):
1.
Loosen the screw for the bracket that holds the inlet
louvers below the door side.
2. Remove inlet louvers and set to the side.
Note:
Service technician may need to step on the
horizontal surface of FRP coated base.
Step with care.
3. Unscrew the bolt in the middle of the door. Keep the
bolt in a safe place.
4. Lift one door with handle until it touches the top.
Swivel bottom of door to remove it from the door
opening and set it to the side.
5. Slide and remove the middle mist eliminator section
so that the shipping bracket is visible.
Figure 41. Condensate trap installation
1-1/4” NPT
female connection
Field supplied
condensate piping
Cleanout plug
Base rail
Note: Negative static pressure in coil section.
