Slant/Fin GXH-190 - Manual (Page 8)

8 GALAXY
ELECTRICAL WIRING
DANGER:
Before wiring, always turn off electric power supply,
otherwise shock or death can result.
1. Power Supply
A separately fused circuit is recommended. Use a standard
15 Amp. fuse or breaker and 14 gauge conductors in BX
cable or circuit.
Provide disconnect means and overload protection as
required. See boiler wiring diagram (Figure 4).
Boiler must be electrically grounded in accordance with
requirements of the authority having jurisdiction, or, in the
absence of such requirements, with the National Electrical
Code, ANSI/NFPA 70-latest edition.
2. Power Connection
Connect hot and neutral to black and white wires inside
junction box at the boiler (See figure 4).
Connect ground wire to ground screw inside junction box.
3. Thermostat Connections
Thermostat connections must be to T and TV screw
terminals of boiler temperature control (See Figure 4).
Thermostat Heat Anticipator Adjustments
If the 24v room thermostat that controls this boiler has an
adjustable heat anticipator, connect entire system to
thermostat and run the system while measuring the current
drawn through the thermostat wires. Set the heat
anticipator at the value measured. The set current should
match power requirements by zone valves and relays.
Add an additional 0.1 Amp to the measured currrent for vent
damper. Refer to the manufacturer’s instruction of zone
valve, vent damper and relays. Also, see instructions with
the thermostat.
4. Multi Zoning
For pump zoning system, see Figures 5 and 6, for zone
valve system, see Figure 7. DO NOT use control transformer
to power external accessories like zone valve and relays,
overload and/or burned-out transformer and boiler
malfunction can result.
5. Indirect External Water Heater
If system includes indirect water heater, the indirect signal
must be separated from heating zones(s) system. See figure
6 and 8. Follow steps below:
a. Connect end switch of the indirect water heater relay
to I1 and !2 of the boiler temperature control.
b. Connect end switch of the heating zones(s) relays to
T and TV of the boiler temperature control.
c. Power DHW and heating zone(s) circulators through end
switch relays as sgown on figure 6. Do not connect
heating zone(s) circulators to C1 and C2 of the control.
Note: For single heating zone with external indirect water
heaters, see figure 9.
Z
T
TV
LO TEMP HI TEMP
ECONOMY
24V
THERMOSTAT
HYDROLEVEL HYDROSTAT CONTROL
MODEL 3200
HOT
NEUTRAL
120V/60Hz
CIRCULATOR
HONEYWELL IGNITION MODULE
GAS VALVE
L1 L2 C2 C1 B1 B2 I1 I2
24V(GND) MV
MV/PV
PV
GND
(BURNER)
24V
GND
MV
PV
MV-PV
ROLL-OUT
SWITCH
PILOT GAS PIPE
IGNITOR CABLE
ELECTRIC
IGNITION
PILOT
: PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE APPLIANCE MUST BE REPLACED.
IT MUST BE REPLACED WITH TYP 105` OR
ITS EQUIVALENT.
VENT DAMPER
HARNESS
I
I
JUNCTION
BOX
SCHEMATIC WIRING DIAGRAM FOR GALAXY GG & GXH
BLOCKED VENT
SAFETY SWITCH
WIRE LEGEND:
FACTORY WIRED
FIELD WIRED, FIELD SUPPLIED
PLUG
CAUTION:
LABEL ALL WIRE PRIOR TO DISCONNCTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
"VERIFY PROPER OPERATION AFTER SERVICING".
RED
WHITE
BLK
BLUE
RED RED RED
B
L
A
C
K
W
H
IT
E
WHITE
BLACK
GREEN
GREEN
Figure 4