Service manual

A DJM3.2 MANUAL
NOTE If this system is to be used as a night heat package with the room temperature
being set back to a lower value then that used in the daytime, this system would
require a separate night thermostat and a device switching between the day and
night thermostats.
Sample wiring for “OR/V” follows:
HOT
NEUTRAL
24 V SUPPLY POWER
COMBUSTION MOTOR
FAN
Air Flow
Switch
E DM DM
C SA C1
FS
LL
N
IGN.
CONTROL
HS
Q
U
M
OR
S
SP
V
X
Y
Z
+
-
T1
T2
CB
PV PV
1
3
2
DM
Μ
AS
Μ
CB
TE 6000
Thermostat
2. X" and "Z" Override (Day and Night Operation)
NOTE: The unit will not discharge at the Master set-point setting. During day operation
the discharge temperature will be either:
• Dial setting plus max upward reset, or
• Dial setting minus max downward reset.
The amount of that reset is determined by Pot Reset Ratio. The effect of the reset is not linear
and to determine the values of the reset authority refer to the table in section on Modulating
Room Reset (Page 13). Note that the table shows a minimum temperature and a maximum
Page 18 Revised: 3/11/99