Roberts Gorden Combat UHD-Series, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 11: O
PERATION AND
M
AINTENANCE
31 of 57
11.2.3 Start-Up the Gas Valve (All Gases)
11.2.3.1 Check Burner Gas Pressure
1. Remove the pl u g in the o u tlet (b u rner) press u re
test point and connect a press u re tap and a
manometer.
2. With the b u rner firing, meas u re the press u re on
the manometer. To adj u st the b u rner press u re,
remove the reg u lator cover from the valve and
t u rn the reg u lator adj u stment scre w to set the
req u ired b u rner press u re as stated in the
Technical Data Table for the correct gas and
model
on Page 53, Section 16.3 and Page 55,
Section 16.6 .
NOTE: For t w o stage valve (High/Lo w operation)
check b u rner press u re in both operation modes. To
adj u st the b u rner press u re, remove plastic cover
from reg u lators and adj u st High and/or Lo w
reg u lators as needed.
NOTE: If the correct b u rner press u re cannot be
reached, then check the inlet press u re to the valve
w ith the b u rner firing. See Technical Data Table on
Page 53, Section 16.3 and Page 55, Section 16.6
for inlet press u re req u irement.
Do not continue to adjust the re g ulator if the
pressure is not chan g in g .
If the inlet press u re is too lo w to allo w correct b u rner
press u re setting, then the gas inlet press u re m u st be
corrected before completing the start- u p.
11.2.3.2 Check Gas Rate
1. After b u rner press u re adj u stment, allo w the
heater to operate for at least 15 min u tes and
then re-check settings. Adj u st press u re setting
if necessary.
2. Check gas flo w rate at gas meter. For t w o stage
valve, (High/Lo w operation) check gas flo w in
both operating modes.
3. T u rn off heater and electrical s u pply.
4. Remove the manometer and refit all covers to
the valve and tighten the scre w of the o u tlet
press u re tap.
11.3 Pressure Switch
The press u re s w itch is factory pre-set for each
model and is not adj u stable.
11.4 External Controls
External controls may incl u de time s w itch, interlock
s w itch, room thermostat and frost thermostat.
Operate each control to ens u re that they f u nction
correctly. Set the s w itches (if eq u ipped) and
thermostat(s) to the u sers’ req u irements.
11.5 Complete Start-Up
Ens u re that all covers are fitted correctly and all test
points are properly sealed.
11.6 Instruction to the User
Explain the controls of the heater to the u ser
incl u ding ho w to t u rn it on and off, u sing the controls
eq u ipped on site.
Give this man u al to the u ser.
Ens u re that the u ser is sho w n and u nderstands the
importance of maintaining clearances to
comb
u stibles on Page 7, Figure 4 , installer
responsibility on Page 5, Section 2 and u ser
instr u ctions on Page 32, Section 12 and all
w arnings defined in this man u al.