Slant/Fin VHS-180 User Manual
Page 14
V
ICTORY
II
VHS Models
14
VENTING SYSTEM REGULAR INSPECTION
A. Inspect the system regularly for condensation, corrosion
and/or physical damage. A qualified professional should ser-
vice the boiler annually and include such an inspection at that
time. The homeowner should look over the system monthly for
damage, water stains, any signs of rust, other corrosion or
separation of the flue (vent) tubing and fittings.
B. Should an inspection turn up signs of condensation, corrosion
or damage, the boiler should be shut down immediately and
the condition should be corrected by a qualified professional.
C. All Victory
II
boilers are equipped with a built-in condensation
drain and trap. The trap loop must be filled with water. DO NOT
operate the boiler without filling the trap with water to prevent
flue gas discharge into space. Periodic inspection should be
made of this assembly for deterioration of the tubing and to
insure that the trap is not plugged. If it is plugged or appears to
have excessive sediment in it, it should be removed from the
drain assembly, straightened out to clear the obstruction,
reformed, filled with water and reinstalled as before.
GAS PIPING
A. Local installation codes apply. The pipe joint compound used
on threads must be resistant to the action of liquefied petro-
leum gases.
B. The gas supply line to the boiler should be run directly from
the meter for natural gas or from the fuel tank for L.P.
propane gas. See page 2 for location of union and manual
main shut-off valve that may be specified locally.
Selecting pipe size for natural gas:
1. Measure or estimate the length of piping from the meter
to the installation site.
2. Consult gas supplier for heating value of gas (Btu/cu. ft.).
3. Divide boiler rated input by heating value to find gas flow
in piping (cu. ft. per hour).
4. Use table below to select proper pipe size.
Example: Boiler model VHS-150 is to be installed. Distance
from gas meter to the boilers is 30 ft. Heating value of natural
gas is 1020 Btu/cu. ft. Select proper pipe size.
Gas flow = 150,000 Btu/hour = 147 cu. ft. per hour
1020 Btu/cu. ft.
At 30 ft. length of pipe, match required capacity from table on
this page (choose higher capacity, in this case is 152 cu. ft. per
hour). Required pipe size is 3/4".
Improper gas pipe sizing will result in pilot flame outages, insuf-
ficient heat and other installation difficulties. For more informa-
tion and also if other appliances are to be attached to the piping
system, see Appendix C of National Fuel Gas Code ANSI
Z223.1-latest edition.
C. The boiler and its gas connection must be leak tested before
placing the boiler in operation. Use liquid soap solution for all
gas leak testing. DO NOT use open flame. This boiler and its
individual shutoff valve must be disconnected from the gas
supply piping system during any pressure testing of that sys-
tem at test pressures in excess of 1/2 PSIG. This boiler
must be isolated from the gas supply piping system by
closing its individual manual shutoff valve during any
pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 PSIG.
D. All gas piping used should be inspected thoroughly for clean-
liness before makeup. A sediment trap must be provided, as
illustrated on page 2.
E. The minimum and maximum gas supply pressure (at the
inlet of gas valve) are shown on the boiler rating plate for the
type of gas used. Gas supply pressure should never be less
than minimum or more than maximum pressure when the
boiler or any other appliance is turned on or off.
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 gage conductors in BX
cable or conduit.
Provide disconnect means and overload protection as
required. See boiler wiring diagram (Figure 11a).
Boiler must be electrically grounded in accordance with the
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
A. Remove electrical junction box cover.
B. Hot connection lead is black. Neutral connection lead is white.
C. Connect ground wire to ground screw inside the junction box.
D. Replace junction box cover.
3. Thermostat Connections
Thermostat wire connections must be to T and TV screw ter-
minals of boiler temperature control (See Figure 11b).
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.
Refer to the manufacturer’s instruction of zone valve, and
relays. Also, see instructions with the thermostat.
4. Multi Zoning
For pump zoning system, see Figures 12 and 14, for zone
valve system, see Figure 13. DO NOT use boiler transformer
to power external accessories like zone valve and relays,
overload and/or burned-out transformer and boiler malfunc-
tion can result.
Length
of pipe
in Feet
1/2
3
/
4
1
1
1
/
4
1
1
/
2
Gas Flow In piping -- cu. ft. per hr.
Iron Pipe Size (IPS) — inches
10
132
278
520
1050
1600
20
92
190
350
730
1100
30
73
152
285
590
890
40
63
130
245
500
760
50
56
115
215
440
670
60
50
105
195
400
610
70
46
96
180
370
560
80
43
90
170
350
530
90
40
84
160
320
490
100
38
79
150
305
460
At pressure drop of 0.3 in. water, specific gravity = 0.6.