York D1SV300 Installation Instructions Manual page 22

530.25-N2
START-UP
PRE START-UP CHECKS
WARiVING Jttmper )tire '"J21 ",(rejer to Elemen t ar]
WlrltlgDlagrat?l),was intentionaiiv
dk'Otl-
nected atd taped at the factory. This is
done to pre~tentblower motor operati(m
and cotnpressoroperation before proper
pre start-up steps hz~e been performed
Do not connect "J21"or complete instal-
lation ofdav-night switch "12-SW"to
terminal 119 until pr? start-up steps
have been perj)rtned.
PRE-START STEPSAND PROCEDURES:
Before starting the unit the following check hst should be
completed:
1. Make sure the available power supply and unit name-
plate data agree.
2. Make sure all air filters are properly installed in filter
racks.
3. rum on power to unit:
If a disconnect switch N installed outside the unit, turn
it to '<ON".The non-fused disconnect (optional) located
in the unit's mam supply panel must also be turned "ON".
CAUTION: Do not attetnpt to start the compressors )\tlt}l-
out at least 8 hours of crankcase heat or com-
pressor damage will occur,
4. Check operutlon of the varmus d~]mpers}'stems:
a. Air volume dampers - refer to paragraph on "Au
Volume Dampers" – ("Air Volume Control System").
NOTE: Stop air twlume dampers in "open"position.
b. Economizer dampers - refer to paragraph on "Econo-
mizer System" – ("Damper Linkage Adjustment").
c, Exhaust air system - refer to paragraph on "Exhaust
Air System".
WARNING: it is important that all panels at? ji~lo"secur-
ed with htches and screws beji)re tinit is
started.
Be sure that the ~taticpressure control ac-
cessory is installed at~dread>' t o reguhte
the static pressure in the duct s?'stern, b e-
fore starting the tinit blower.
-
Addltwnal Information regardinginstallat [on and adjust-
ment of the statICpressure regulator accessory is provided
m the ~ccessory instruction Form 530.25-N2. 1.
CAUTIOA', Do not start the utl[t blower utl[il the VA V
5.
6.
7.
8.
9.
10.
11
12
13.
duct s-r'stctn supp~II a v boxes hale been
opened. A d]ust the dl~ctair boxes [o the
]~l!~'OPCtI p ~)$ition,usi!lgthe box thermo-
stats,
Make sure the proper clearfinceswere considered.
Make sure all foreign matter has been removed from the In-
terior of the unit (took, construction or shlpplng materta1s),
Rotate all fans and blower wheels manu:illyt<]check f(]r
free
rotation.
Check belt tensions and alignment.
Make sure all w]ringconnect lorrsare t Ight,
Makesure the fuse sl~esand the power wire tire properly
sl~ed,
Make sure all controls are set at theu proper set points.
Make sure condensate dra]n line IStr~pped per irlstructlons
as mdlcated with Fitzure 4.
For shipping, the compressor hold-down nuts are
tightened, drawing the mounting feet down to the
shipping stops. After the unit is in its final position,
the four hold-down nuts must be removed to insert
the rubber grommets found in the small parts bag.
Replace the hold-down nuts and tighten until they
start to compress the isolator springs and then give
them an additional half turn.
22
Central Environmental Systems