Lennox GCS16-953

Page 54
1- Disconnect power. Turn thermostat to OFF posi
tion (occupied mode).
FIGURE 62
REMD16M INSTALLATION
REMD16 GRAVITY
EXHAUST ASSEMBLY
PED16
(IF USED)
ECONOMIZER
FILTERS
REMD16 INTAKE
HOOD
UNIT
FILTERS
VERTICAL
MULLION
SCREWS
ECONOMIZER
CONTROLS
FIGURE 63
MODULATING
SOLID STATE ENTHALPY CONTROL
TR TR1
A
BC
D
+
+
5
2
4
T1
P1P
T
1
MINIMUM
POSITIONER
LED
3
2- Install jumper across contactor K3-2 terminals
(see unit diagram) in unit control box. Install jump
er across enthalpy control terminals T and T1.
See figure 63 for terminal location.
3- Restore power to unit. Outdoor damper should
drive to fully open position (60 to 90 sec. required
for full travel). Observe travel for proper damper
operation.
4- Disconnect power to unit. Outdoor damper should
spring return to closed position.
5- Remove T and T1 jumper then restore power to
unit. Outdoor damper should drive to minimum
position. Adjust minimum damper position pot lo
cated on control. See figure 63.
6- Disconnect power to unit and remove jumper on
blower relay terminals 6-9. Replace all panels.
Restore power to unit.
D-Transitions
Optional supply/return transition SRT16 is available for
use with sries units utilizing the optional RMF16 roof
mounting frame. The transition must be installed in the
RMF16 mounting frame before mounting the to the frame.
Refer to the manufacturer's instructions included with the
transition for detailed installation procedures.
E-Supply and Return Diffusers
Optional flush mount diffuser/return FD11 and extended
mount diffuser/return RTD11 are available for use with the
. Refer to the manufacturer's instructions included with the
transition for detailed installation procedures.
F-Firestats
Some local codes require the installation of discharge air
and return air firestats to automatically shut down the unit
when excessive temperature is reached . Other local
codes require firestats wired to perform tasks such as en
ergizing a blower or closing dampers. These field provided
firestats MUST be mounted and wired per local codes or
insuring agencies. If manual reset controls are used, they
MUST be accessible.
Firestat wiring is shown on the unit wiring digrams in back
of this manual.