Slant/Fin GALAXY II GXHII-95 Installation And Operating Instructions Manual page 8

8
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
WIRING DIAGRAM FOR GALAXY II WATER BOILERS
HYDROLEVEL HYDROSTAT CONTROL
MODEL 3200-03
Z
YELLOW
T
YELLOW
TV
LO TEMP
PLUG
24V
THERMOSTAT
L1 L2 C2 C1
I I
HOT HOT
120V/60Hz 120V/60Hz
NEUTRAL NEUTRAL
CIRCULATOR
JUNCTION
BOX
WIRE LEGEND:
FACTORY WIRED
FIELD WIRED, FIELD SUPPLIED
: PROVIDE DISCONNECT MEANS AND
I
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.
CAUTION:
LABEL ALL WIRE PRIOR TO DISCONNCTION WHEN SERVICING CONTROLS.
WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.
"VERIFY PROPER OPERATION AFTER SERVICING".
Figure 4
match power requirements by zone valves and relays.
Add an additional 0.1 Amp to the measured current 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 I2 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 shown 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.
ECONOMY
HI TEMP
VENT DAMPER
HARNESS
B1 B2 I1 I2
IGNITION MODULE
24V(GND)
BLUE
24V
RED RED RED
ROLL-OUT
BLOCKED VENT
SAFETY SWITCH SWITCH
ELECTRIC
IGNITION
PILOT
GAS VALVE
IGNITER CABLE
GND
PILOT GAS PIPE
MV
MV
MV/PV
PV
GND
(BURNER)
GREEN
BLK
PV
MV-PV
WHITE
RED
41 3397 000
GALAXY II